The police dog scented about till he found the trail. 警犬嗅來嗅去,終於找到了蹤跡。
The dogs were smelling round; perhaps they smelt the thief. 那些狗在到處嗅,也許它們嗅到了小偷的氣味。
牛津高階第八版
美國韋氏詞典
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維基百科 (自由的百科全書)