养虎贻患: feed a tiger to one's own detriment; harbor sb. who later will do you harm; cherish [warm] a snake in one's bosom; if you rear a tiger, sooner or later you'll get into trouble.; keep a tig
Example Sentences:
1.
He plied his new profession with emolument to himself, and infinite plague to the country . 他干这新行肥了自己，对国家却是贻患无穷。
