not know beans about sth

每日一語---not know beans about sth

今天要介紹的片語是 not know beans about sth. bean本身是指豆子，在這邊引申為「少量」、「一點」的意思。所以呢，這個片語就是說「對某事不了解」、「一竅不通」。來看例句吧！


He doesn't know beans about the insurance business at all. 他對壽險業一點都不了解。

Bill doesn't know beans about flying an airplane. Bill對駕駛飛機一竅不通。