1. They have planned the itinerary for a long time.
    他们已经计划旅行路线好长时间了。

2. The road is 5 kilometer long.
    这条马路5公里长.

3. The road is ten kilometre long.
    这条公路十公里长.

4. The kingdom of Norway has a long and rugged coastline.
    挪威王国有着长而崎岖的海岸线。

5. The elephant´s nose is very long.
    大象的鼻子很长.

6. This may seem a paradoxical claim to make at a time when mankind is so much preoccupied with weapons of destruction.
    在人类如此全力贯注于毁灭性武器的时代，这看来可能是一种自相矛盾的主张。

7. They make an annual pilgrimage to Mecca.
    他们每年都去麦加朝圣。

8. The population of the earth is increasing very fast. Man must make the earth support more people.
    地球上的人口在迅速增长. 人类必须使地球养活更多的人.

9. There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface.
    长久以来, 海员们有一种迷信, 那就是海豚会把很快要淹死的人推到水面使之获救,

10. Though the sound could be heard clearly, it took me a long time to react.
    虽然声音听得很清楚，可我过了好一会才反应过来。