tip off用法??那个对?
那个对?I tipped off the drug dealer to the police.
I tipped off the police to the drug dealer.
I tipped off the police about the drug dealer. tip off 的中文意思是 向...泄漏。
在楼主的三句话中第三句的用法是对的
Tip off 在口语中的意思是“Supply with secret or private information; also, warn or alert”，
例如：
The broker often tipped her off about stocks about to go down in price.
They were tipped off and left the country before the police could catch them.
Tip off 还可以表示“透露内部信息，给出内行人的建议”，
例如：He tipped off the police about the terrorist plot. tip off 另一种意思，告诫，常跟that从句。
The class president tipped off the class that it was the superintendent's birthday. The thieves did not rob the bank as planned because someone tipped them off that it was being watched by the police.
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