每日商務英語 第701期:爽約

to flake out ------------ 爽約，失職（俚語）

英文釋義
(SLANG) To fail to keep an appointment, or to fulfill a duty or promise.

例句
My brother promised to play golf with me yesterday, but he flaked out, and so I played alone.
我兄弟昨天答應陪我打高爾夫球，但是他爽約了，所以我只好一個人去打。