1. No one knows how long it will last.
    谁也不知道会持续多久。

2. Not that long ago!
    不，没有那么久。

3. No one has ever searched my baggage, or asked anything more than where I planned to stay and for how long.
    没有任何人来查我的行李，除了有人来问我打算住在哪里、住多久之外，就再没有人来问我什么了。

4. Nights are long in hospitals, but all through the night the young Marine sat there in the dimly-lit ward, holding the old man's hand and offering words of hope and strength.
    医院里长夜漫漫，但是年轻的海军陆战队队员整夜都坐在灯光昏暗的病房里，握着老人的手，说着充满希望与力量的话。

5. No, it would be the worn, fading envelope she kept for so long.
    都不是，要抢出来的该是那个已经保存很久并已破旧、发黄了的信封。

6. Nothing says love like a dozen long-stemmed roses on Valentine's Day.
    没有什么比情人节的一束长茎玫瑰更能表达爱情。

7. Not long after Christmas last year, Suzanne came to inspect my apartment and saw some new posters pasted on the wall.
    去年圣诞节，苏珊娜到我家来了解情况，看到墙上贴着新的宣传画，

8. He is suffering from abdominal pains.
    他正受腹痛之苦。

9. He stayed in Belgium for a few years; then he went to France. Before long he had to move on again.
    他在比利时居住了几年, 后来到法国. 不久,他不得不再迁移.

10. How long would you stay in Africa if you had a chance to go?
    如果你有机会去非洲的话, 你打算居住多长时间?