[ lait ]发音:   用"light"造句
1.光,光线;光明,亮光 (opp. darkness). Hang the picture in a good light. 把那幅画挂在能看清楚的地方。
2.发光体,光源;灯,信号灯;灯塔;天体。 a blackout light 防空灯。 ancient lights 保护光线不受挡住的权利。 the greater light 太阳。 the lesser light 月亮。
3.〔俚语〕(舞台的)脚光。 before the lights 在+更多解释...
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  1. The last of evening light was fading away .
  2. R(l)is the amplitude of the transmitted light .
  3. Light was coming through in the corner flat .
  4. The lights of the traffic dazzled him .
  5. Light sets the speed limit for nature .


  1. with few burdens; "experienced travellers travel light"
    同义词:lightly, lightly
  2. with few burdens; "experienced travellers travel light"
    同义词:lightly, lightly
  1. characterized by or emitting light; "a room that is light when the shutters are open"; "the inside of the house was airy and light"
  2. (used of color) having a relatively small amount of coloring agent; "light blue"; "light colors such as pastels"; "a light-colored powder"
  3. of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C"
  4. psychologically light; especially free from sadness or troubles; "a light heart"
  5. not great in degree or quantity or number; "a light sentence"; "a light accent"; "casualties were light"; "light snow was falling"; "light misty rain"; "light smoke from the chimney"
  6. (physics, chemistry) not having atomic weight greater than average; "light water is ordinary water"
  7. of little intensity or power or force; "the light touch of her fingers"; "a light breeze"
  8. of the military or industry; using (or being) relatively small or light arms or equipment; "light infantry"; "light cavalry"; "light industry"; "light weapons"
  1. casual and unrestrained in sexual behavior; "her easy virtue"; "he was told to avoid loose (or light) women"; "wanton behavior"
    同义词:easy, loose, promiscuous, sluttish, wanton
  2. (used of soil) loose and large-grained in consistency; "light soil"
  3. (of sleep) easily disturbed; "in a light doze"; "a light sleeper"; "a restless wakeful night"
  4. demanding little effort; not burdensome; "light housework"; "light exercise"
  5. having relatively few calories; "diet cola"; "light (or lite) beer"; "lite (or light) mayonnaise"; "a low-cal diet"
    同义词:lite, low-cal, calorie-free
  6. easily assimilated in the alimentary canal; not rich or heavily seasoned; "a light diet"
  7. designed for ease of movement or to carry little weight; "light aircraft"; "a light truck"
  8. moving easily and quickly; nimble; "the dancer was light and graceful"; "a lightsome buoyant step"; "walked with a light tripping step"
    同义词:lightsome, tripping
  9. (of sound or color) free from anything that dulls or dims; "efforts to obtain a clean bass in orchestral recordings"; "clear laughter like a waterfall"; "clear reds and blues"; "a light lilting voice like a silver bell"
    同义词:clean, clear, unclouded
  10. silly or trivial; "idle pleasure"; "light banter"; "light idle chatter"
  11. intended primarily as entertainment; not serious or profound; "light verse"; "a light comedy"
  12. having little importance; "losing his job was no light matter"
  13. (used of vowels or syllables) pronounced with little or no stress; "a syllable that ends in a short vowel is a light syllable"; "a weak stress on the second syllable"
    同义词:unaccented, weak
  14. less than the correct or legal or full amount often deliberately so; "a light pound"; "a scant cup of sugar"; "regularly gives short weight"
    同义词:scant, short
  15. marked by temperance in indulgence; "abstemious with the use of adverbs"; "a light eater"; "a light smoker"; "ate a light supper"
  16. very thin and insubstantial; "thin paper"; "light summer dresses"
  17. weak and likely to lose consciousness; "suddenly felt faint from the pain"; "was sick and faint from hunger"; "felt light in the head"; "a swooning fit"; "light-headed with wine"; "light-headed from lack of sleep"
    同义词:faint, swooning, light-headed, lightheaded
  1. make lighter or brighter; "This lamp lightens the room a bit"
    同义词:illume, illumine, light up, illuminate
  2. begin to smoke; "After the meal, some of the diners lit up"
    同义词:light up, fire up
  3. alight from (a horse)
    同义词:unhorse, dismount, get off, get down
  4. to come to rest, settle; "Misfortune lighted upon him"
    同义词:alight, perch
  5. fall to somebody by assignment or lot; "The task fell to me"; "It fell to me to notify the parents of the victims"
  6. cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette"
  1. any device serving as a source of illumination; "he stopped the car and turned off the lights"
    同义词:light source
  2. a device for lighting or igniting fuel or charges or fires; "do you have a light?"
    同义词:lighter, igniter, ignitor
  3. the visual effect of illumination on objects or scenes as created in pictures; "he could paint the lightest light and the darkest dark"
  4. merriment expressed by a brightness or gleam or animation of countenance; "he had a sparkle in his eye"; "there''s a perpetual twinkle in his eyes"
    同义词:sparkle, twinkle, spark
  5. the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
    同义词:luminosity, brightness, brightness level, luminance, luminousness
  6. public awareness; "it brought the scandal to light"
  7. mental understanding as an enlightening experience; "he finally saw the light"; "can you shed light on this problem?"
  8. a particular perspective or aspect of a situation; "although he saw it in a different light, he still did not understand"
  9. a visual warning signal; "they saw the light of the beacon"; "there was a light at every corner"
  10. an illuminated area; "he stepped into the light"
  11. a person regarded very fondly; "the light of my life"
  12. (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window"
    同义词:visible light, visible radiation
  13. having abundant light or illumination; "they played as long as it was light"; "as long as the lighting was good"
  14. a condition of spiritual awareness; divine illumination; "follow God''s light"


Visible light (commonly referred to simply as light) is electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight.CIE (1987).


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