I learned to fly in Vietnam.

我在越南学会了驾驶飞机。

《柯林斯英汉双解大词典》

Rachel seems to be the one fly in the ointment of Caroline's smooth life.

雷切尔似乎是卡罗琳平静生活中惟一的破坏因素。

《柯林斯英汉双解大词典》

A balloon can fly in the air because hot air rises.

气球能在天空飞是因为热空气会向上升。

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But the published report says that would have forced it to fly in a difficult position.

VOA: special.2010.03.16

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选

because they fly in to land on our medical center, a few times a day usually.

因为它们飞进来在我们的医学中心上降落，一天通常会有好几次。

学习机械工程 - SpeakingMax英语口语达人

Budding entrepreneurs usually had to fly in a lawyer from San Francisco to draw up the papers.

FORBES: Startup City

Say you live in Denver and are looking to fly in mid-April to Central or South America.

BBC: Flip a coin, book a flight

Till then the males fly in biblical swarms among the treetops, serenading the fair sex.

ECONOMIST: Cicadas in Illinois