EN↔ZH→back-of-the-envelope

back-of-the-envelope

English → Chinese Flag: cn

Oxford English–Chinese

back-of-the-envelope

/BrE ˌbakəvðəˈɛnvələʊp

, AmE ˌbækəvðiˈɛnvəloʊp

/

adjective

粗略的 ‹calculation, reasoning›