play with fire
to act in a way that is not sensible and take dangerous risks 玩火;冒險
She was playing with fire by secretly borrowing office funds.
她暗中挪用公款簡直是玩火.
He knew he was playing with fire by dating a student.
他知道跟學生約會是玩火.
He who plays with fire gets burned.
玩火者必自焚.
adj. 放松的, 松懈的,隨意的 relax的過去式(