用费 yòngfèi expense Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 不用费心把窗关上,不会下雨的。 bùyòng fèi xīn bǎ chuāng guān shang, bùhuì xià yǔ de. Don't bother to shut the window; it won't rain. Source: UM-Corpus: News