基本释义
n.
密告
相关例句
tip-off
8.Effort from tip off to whatever time in the morning a game might be decided.
9.Instead, Snape wants to know the plan so that he can tip off Dumbledore if necessary.
10.His found out later his flatmate had tipped off the men, and was given 10 per cent for each tip-off on new students.

