envelope
含义: A flat paper container for a letter or document
An envelope is a paper covering used to enclose and protect letters, cards, or documents for posting or delivery. Envelopes typically have a flap that can be sealed and space for writing the recipient's address. The phrase 'push the envelope' means to go beyond normal limits or boundaries.
例句
- She put the letter in an envelope and sealed it. 她把信放进信封并封好了。Ella puso la carta en un sobre y lo selló.彼女は手紙を封筒に入れて封をしました。그녀는 편지를 봉투에 넣고 봉했습니다.
- Could you write the address on the envelope, please? 请您在信封上写上地址好吗?¿Podría escribir la dirección en el sobre, por favor?封筒に住所を書いていただけますか?봉투에 주소를 써 주시겠어요?
- I found an envelope stuffed with old photographs. 我发现了一个塞满旧照片的信封。Encontré un sobre lleno de fotografías antiguas.古い写真がぎっしり詰まった封筒を見つけました。오래된 사진이 가득 들어 있는 봉투를 발견했습니다.
发音
用法指南
语境: general
语气: neutral
起源与历史
From French 'enveloppe', from 'envelopper' (to wrap up, envelop), possibly from a Gaulish or Celtic root. The paper container sense dates from the 1700s; earlier it meant any wrapper.
文化背景
Era: Modern
Generation: All ages
Social background: Universal
故事与趣闻
The word comes from French 'enveloppe' meaning 'a wrapper.' The idiomatic expression 'push the envelope' originated from aviation, referring to the flight envelope - the limits of an aircraft's performance capabilities.
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