安检犬勤勉地嗅闻着行李,它受过训练,能探测出任何违禁物品。

The security dog sniffed diligently at the luggage, trained to detect any prohibited substances.

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The security dog sniffed diligently at the luggage, trained to detect any prohibited substances.

sniffed 是动词 sniff 的过去式,sniff 的意思是"用鼻子嗅、闻",指动物或人通过鼻子吸气来辨别气味的行为。

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