about as useful as a chocolate teapot
一点用处都没有
口语·幽默地批评某物毫无价值
英文释义
completely useless or ineffective
例句
This broken umbrella is about as useful as a chocolate teapot in a rainstorm.
典故来源
源自英国幽默，巧克力遇热融化，做茶壶毫无用处，比喻事物完全无效。