世界大战

Many senior citizens have been through two world wars...

很多年长的公民都经历了两次世界大战。

At the end of the second world war he was working as a docker...

第二次世界大战结束时，他是一名码头工人。

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。

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。

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。