My uncle was a hard-nosed army officer who had seen service in two wars.

我叔叔是位严格而又倔强的军医，他曾身经两次大战。

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This is especially true if its size, form, or use departs from the usual pattern that has seen service in the past.

尤其当结构的尺寸、形式，或用途与过去通用的形式不同时，这一点尤为重要。

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The company submitted a design that was built around the chassis of the Medium Tactical Vehicle Replacement, a seven-ton truck that has already seen service in Afghanistan.

基于一种已在阿富汗服役的七顿重的中型战术车辆底盘，奥什卡什公司递交了一个设计方案。

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Mr Fraser had seen service too, far more soberly, with the Gordon Highlanders in Africa and the Fourteenth Army in Burma.

ECONOMIST: George MacDonald Fraser | The

The resumption of rail service also will provide relief to Amtrak, which has seen its service halted between New Haven and New York since Friday's crash.

WSJ: Metro-North Is Set To Restore Full Service Wednesday

He had already seen active service with the marines and was soon recalled for the Korean war.

ECONOMIST: John Weinberg