unsealed letter

基本解釋

• 開口信件

英漢例句

雙語例句

• This is an unsealed letter, don't read it.
  信函送到時(shí)是開著口的。
• They became even more popular in Britain when a card could be posted in an unsealed envelope for one half-penny - half the price of an ordinary letter.
  儅郵寄非密封的卡片衹要半便士（普通信件郵費(fèi)的一半）時(shí)，郵寄賀卡變得異常流行。

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