英语单词:envelope

意思翻译

envelope

noun [ C ] uk/ˈen.və.ləʊp/ us/ˈɑːn.və.loʊp/

A2 信封

a flat, usually square or rectangular, paper container for a letter More examples

I folded the letter in half and put it in an envelope.

Send a self-addressed envelope for our free catalogue.

An envelope was waiting for me when I got home.

Do you recognize the writing on the envelope?

The teacher opened the sealed envelope containing the exam papers.

Idiom

on the back of an envelope匆忙地;粗略地

in a hurried way, without much detail

The prices were very roughly calculated - it looked as though he'd done them on the back of an envelope. 计算出的价格不很精确——看上去似乎他只是粗略算了一下。