公里

• How many millimeters are there in a kilometer ?
  一公里有多少毫米？
• This reservoir extends a good five kilometres .
  这个水库南北足有5公里。
• It's some thirty kilometres from here .
  离这儿差不多有三十公里。
• One solar radius equals 696, 000 kilometers .
  一个太阳半径等于696，000公里。
• The village is two kilometres from here at farthest .
  那村庄离这里至多两公里。
• The car has a maximum speed of 120 kilometres an hour .
  这车全速每小时120公里。
• He had walked several kilometers over pavements .
  他在人行道上已经走了好几公里。
• One kilometre is equivalent to two li .
  一公里为二华里。
• Usually they burn up about 100km above the earth .
  它们常在地球上空约100公里处被烧毁。
• The velocity of light is about 300,000 kilometres per second .
  光速约为每秒30万公里。