tip off

基本解释

Looks can be deceiving, but it got me to wondering if there are certain nuances of a guy's place that tip off that he's single.
眼睛是可能被欺骗的，但这使我好奇起来：是否在男生们住的地方真有一些细微的差别来泄露他们是否单身呢？
Perhaps the tip-off on applying the Garrison insight is the common attitude of Smith and the physiocrats on usury laws.
我们或许可以从斯密和重农学派对于反高利贷法的同样态度来理解加里森的观点。
After a tip-off police tracked down 30-year-old Conrad Zdierak - trouble was though he was white.
据线报，警方逮捕了30岁的康纳德德拉克——但问题是，他是个白人。

Male circumcision is the cutting off of a small amount of skin from the tip of the penis.
What's a tip off to something being composite?
怎么能确定什么东西是合成的呢？
耶鲁公开课 - 死亡课程节选
You might ask though,is there some other behavior, something else that should tip us off,could tip us off, as to whether or not we really do or don't believe that we're going to die?
你可能会问，有没有其他行为，能够让我们突然醒悟，知道我们真正是否相信自己会死呢？
耶鲁公开课 - 死亡课程节选

It also allows it to tip off users to traffic jams, road construction and other obstacles.
FORBES: A Crowd-Sourced Navigation Service

If someone tips you off, they give you information about something that has happened or is going to happen.