The police are calling for ____ now that they know the burglar has a gun.
Aback-up正確答案
Bcriminal record
Cstreet crime
Dwalkie-talkie
答案與詳解
back-up 意為「後援、支援警力」。警方得知歹徒持槍(has a gun)情況危險,call for back-up(呼叫支援)是警務英文固定用法。
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