| 单词 | be on the scent |
| 例句 | DEFINITIVE EXAMPLES 权威例句The hounds had been on the scent (= following the smell) of the fox for several miles, but they lost it near the river.猎狗几英里一直跟踪着狐狸的臭迹，但是到了河边却失去了线索。剑桥国际 |
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