Its inventor died in World War I.

它的发明者早在一战时就已辞世。

youdao

Tooth brushing became popular during the World War I.

第一次世界大战期间，刷牙开始流行起来。

youdao

Before the war I saw Gaddafi a few times and his sons.

在战前，我见过卡扎菲和他的儿子们几次。

youdao

The project collects remembrances of veterans who served in World War I,World War II, the Korean War and Vietnam War.

VOA: special.2010.11.05

And Born worked on a number of things, including the Born exponent, and taught himself crystallography sort of as something to do during World War I.

玻恩也做出了许多贡献，包括玻恩指数，他自学结晶学,这大约是在一战期间。

麻省理工公开课 - 固态化学导论课程节选

I think obviously with the war in Iraq emphasised our, the extent, how close we are.

我想，伊拉克战争，很明显地突出了我们之间的关系有多么密切。

英国的首相们 - SpeakingMax英语口语达人

With the outbreak of World War I the reputation of the Germanic gnome plummeted.

BBC: From the section Magazine

Eddie Rickenbacker, the World War I ace, bravely founded Eastern Airlines in the late 1930s.

FORBES: In search of the right quadrant

Post World War I America was captivated by the daring of men like Charles Lindbergh and Richard Peary.

FORBES: Raider Of the Lost Egg