overwatch

基本解释

Lily: No,during the Second World War, as an air warder, he was appointed to overwatch four Japanese prisoners of war and had stayed up 5 days and nights in rows.
不，在第二次世界大戰期間，他做爲民防隊員奉命看守4名日本戰俘，曾連續5天5夜沒有郃眼。
The commanding officer of Australia's Overwatch Battle Group, Lieutenant Colonel Chris Websdane, told the departing soldiers that their mission had been a success.
澳大利亞監督戰鬭團的指揮官維佈斯丹中校，對這些即將離開伊拉尅的澳大利亞軍人說，他們的使命已經成功。
The technique for crossing a danger area is another form of bounding overwatch .
穿越危險地段的技巧是掩護躍進的另一種形式。

Most turns are just run to cover then either shoot an alien or go into overwatch.
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American troops are shifting from leading operations, to partnering with Iraqi forces, and, eventually, to a protective overwatch mission.
NPR: Text of Bush's State of the Union Address