Kevin: What do the students often do before a big exam?

The students take a preliminary test in March, and the main examination in July.

学生在三月份参加预考, 七月参加大考.

He lucked out on the final examination.

他碰巧这次大考及格了.

But carrots got their biggest boost during the two world wars when food shortages forced people to eat them and governments told everyone how healthy carrots were

但是在两次世界大战期间胡萝卜的发展才获得了最强劲的推动，那时的食物短缺使得人们必须吃胡萝卜，而政府也开始宣传胡萝卜多么健康。

Britain suffered a considerable brain drain to the United States after World War II.

第二次世界大战以后,英国人才外流严重,许多精英都去了美国,这给英国造成了很大的损失.

During World War I, cannons shot chemical weapons at and airplanes dropped bombs on unsuspecting cities.

在第一次世界大战期间, 火炮和飞机向无准备的城市射击化学武器和投掷炸弹.

A representative sample of English poetry of World War One is surveyed.

阿的第一次世界大战中英诗歌代表性的调查.

The Olympic suffered two crashes with other ships and went on to serve as a hospital ship and troop transport in World War I. Eventually, she was taken out of service in 1935, ending the era of the luxurious Olympic class ocean liners.

在第一次世界大战中，奥林匹克号与其他船只发生了两次碰撞，后来又负责医疗和军队的运输。（55)奥林匹克号最终于1935年退役，结束了豪华的奥林匹克级远洋客轮时代。

The Second World War bled white many countries in Europe.

第二次世界大战耗尽了许多欧洲国家的财力物力.

Then came the First World War and the Second World War.

到了第一次世界大战和第二次世界大战.

He gave two arms in the Second World War.

在第二次世界大战中,他失去了双臂.

Williamson. Austria Hungary and the Origins of the First World War.

《奥匈帝国与第一次世界大战的起因》.

In 1914, World War I had broken out.

　　1914年, 第一次世界大战爆发.

He was maimed in a First World War battle.

他在第一次世界大战的一埸战斗中受伤致残.

He has lived through two world wars.

他经历过两次世界大战.

We get the statistics we needed through his good office.

我们透过他的帮助弄到了所需的统计资料.

During World War 1, Marie put her knowledge to use.

在第一次世界大战中, 玛丽把她所学知识转为运用.

In 1914, the First Battle of the Marne began during World War One.

1914年, 第一次海上战争在第一次世界大战期间爆发.

Ever since the First World War, most developing countries have experienced a deteriorating trade condition.

第一次世界大战以来, 大多数发展中国家都遇到了一种不断恶化的贸易条件.

I fear that a land war now looks very probable.

恐怕陆地战爆发的可能性很大。

The potential for conflict is great.

爆发冲突的可能性很大。