My uncle was a hard-nosed army officer who had seenservice 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。
2
This is especially true if its size, form, or use departs from the usual pattern that has seenservice 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。
3
The company submitted a design that was built around the chassis of the Medium Tactical Vehicle Replacement, a seven-ton truck that has already seenservice in Afghanistan.