1. The strike is due to begin on Tuesday. No one knows how long it will last. The
    罢工定于星期二开始.谁也不知道罢工会延续多久。

2. The two tribes were long at feud with each other.
    这两个部族长期不和。

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

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

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

6. The people of all countries are striving for a lasting world peace.
    各国人民正在为世界持久和平而斗争。

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

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

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。