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》

He fought in Vietnam.

他在越南打过仗。

《牛津词典》

My father had many business interests in Vietnam.

我父亲在越南有许多公司股权。

《柯林斯英汉双解大词典》

On March thirty-first, President Johnson spoke to Americans about the war in Vietnam and his efforts to limit it.

VOA: special.2009.08.30

Ronald Reagan argued it was our noble cause in Vietnam.

里根说那是我们在越南的光荣使命

耶鲁公开课 - 美国内战与重建课程节选

I had an opportunity in the late 80s and early 90s, working with a small foundation in New York, to begin cultural activities in Vietnam before normalization of relations between the US and Vietnam.

我在八十年代末九十年代初曾经有幸，在纽约的一个小型基金会工作，和越南开展一些文化活动,那时美国和越南还未实现外交关系正常化。

普林斯顿公开课 - 人性课程节选

While Hagel and Dung knew of each other's service in Vietnam, they had never met.

NPR: Hagel Mixes Business And Memories In Asia Trip

Earlier this month, officials in Vietnam learned of an outbreak in their province from the newspaper.

ECONOMIST: Animal and human health

An office in Taiwan will soon be upgraded and a new one established in Vietnam.

ECONOMIST: For once, a foreign bank may have bought wisely in China