back and forth中文是什么意思

• (前后)来回地,往返
• (前后)来回地，反复地
• （前后）来回，来来往往
• 或前或后；来来回回
• 来回,往返,来来往往的
• 来回，往返，来来往往地
• 来回，往复
• 来回地,反复地
• 来回走
• 来来回回的
• 来来去去
• 往复的

• back    n. 1.背，背部；背脊；背面，反面；背后，后部，后面， ...
• forth    adv. 1.向前，向前方。 2.以后。 3.向外，由隐 ...
• argument back and forth    前后论证
• b back and forth    来回，往返，来来往往的
• back abd forth mode    前后扫描方式
• back and forth bending test    反复弯曲试验
• back and forth method    选择法; 选择试法
• back and forth motion    往复运动
• back and forth movement    往返运动; 往复运动
• back and forth pass    来回通过
• back and forth; in and out    一来一往
• back-and-forth method    尝试法
• back-and-forth mode    前后扫描方式
• back-and-forth piston    纵向间隙
• bat back and forth    详细考虑
• it go back and forth in rain    雨中徘徊
• shift back and forth    前后移动,来回移动
• shuttle back and forth    如梭来回
• stroll back and forth    来回溜达
• walk back and forth    转来转去
• back-and-forth control stick movement    驾驶杆前后移动
• run back and forth many times    来回来去地跑了好多趟
• go back and forth between two places    两头儿跑
• forth    adv. 1.向前，向前方。 2.以后。 3.向外，由隐而显。 burst forth (芽、蕾)绽开；(火山等)爆发。 stretch forth one's arms 伸出胳臂。 sway back and forth 前后摇动。 put forth leaves 发芽。 from this time forth 今后，从此以后。 and so forth 等等。 right forth 立刻。 so far forth 到那儿为止，单就那些来说。 so far forth as …到…的程度 (so far forth as you work 你工作多少就…)。 〔古语〕出于，来自。 go forth the house 从屋里出去。
• and so forth    等等,如此等等; 依次类推

• She moved the tray back and forth and regarded the effect .
  她把茶盘一会儿放在这儿，一会放在那儿，看看哪个位置最理想。
• The wave continues to grow as it sweeps back and forth across the active medium .
  光波在激活媒质中来回穿过时，将不断得到加强。
• He discovered that the rattle came from a hanging oil lamp that was swinging back and forth .
  他发现声响来自一盏来回摆动的吊油灯。
• Children grow up feeling unsettled as they are moved back and forth between parents .
  孩子在这种被父母推来推去的环境中感到动荡不安。
• He began rocking back and forth happily like a handsome child in a high chair .
  他象个坐在高脚椅里的伶俐孩子那样快活地前后摇晃起来。
• The two departments adeptly pushed the ball back and forth into each other's court .
  这两个部都很老练，把球来回地踢到对方的场地上去。
• She sat in the deck chair beside his, drifting back and forth across the edge of sleep .
  她坐在他旁边的躺椅里，迷迷糊糊地前后摇晃着。
• The hawk flew back and forth a few times, and then alighted among the rocks by the spring .
  这只鹰前前后后飞了好几个来回，然后落在泉水旁边的岩石上。
• In contrast, the axial beam continues to build as it bounces back and forth across the active medium .
  相反，轴向光束则随着往复穿过激活媒质而不断加强。
• The effect can, accordingly, be amplified by reflecting the light back and forth a few times through the sample .
  因此，把光在样品中来回反射数次，就可以把效应加强。

• back and forthとは意味：back and forth 行ったり来たり いったりきたり