學(xué)個詞 Learn A Word:403 undercover

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今天我們要學(xué)的詞是undercover。 Undercover, 是指秘密的，暗中進(jìn)行的。"An undercover operation," 就是一次秘密行動。最近，美國農(nóng)業(yè)部宣布回收1億4千3百萬磅牛肉。"An undercover video showed that cows too sick to stand were slaughtered for human consumption," 因為一部秘密拍攝的錄像顯示，加州一家屠宰廠非法宰殺了很多病得站不起來的牛，并將牛肉送入市場。"The undercover investigator refused to disclose his identity for fear of retaliation," 因為擔(dān)心報復(fù)，臥底拍攝錄像的調(diào)查人員不肯透露自己的身份。好的，今天我們學(xué)習(xí)的詞是undercover...