1. Even the boom that happens when the jet breaks the sound barrier went unnoticed.
    也察觉不到飞机冲破声障时发出的隆隆声。

2. The Sahara Desert is a natural barrier between North and Central Africa.
    撒哈拉沙漠是北非与中非之间的天然屏障.

3. There were ten serious casualties in the train crash.
    有十人在火车撞车事故中受伤.

4. The deep river was an insuperable barrier to those who could not swim.
    对不会游泳的人来说，这条深河是无法超越的障碍。

5. The plane wasn´t too badly damaged, but over the years, the crash was forgotten and the wreck remained undisturbed.
    飞机损坏的程度并不严重，但是，多年来这起飞机失事已被遗忘，飞机残骸也没受到破坏。

6. Then in 1989, twenty-six years after the crash, the plane was accidentally rediscovered in an aerial survey of the island.
    于是，到了1989年，飞机失事26年后，在对小岛的一次航空勘查中那架飞机被意外地发现了。

7. They had the English Channel as a barrier against the Nazi ground forces, and they had the Royal Air Force(RAF) to battle the Nazis in the sky.
    他们有着英吉利海峡这道抵挡纳粹地面部队的天然屏障，还有皇家空军在空中与纳粹作战。

8. High tariff is a barrier to international trade.
    高关税是发展国际贸易的障碍。

9. Didn´t your wife have a crash?
    你妻子被车子撞了一下吧?

10. Didn´t you have a crash?
    难说您没有出车祸吗？