postmark

n.

（信件或包裹上的）邮戳；

复数：postmarks

1. He imprinted a letter with a postmark.
   他在信件上盖上了邮戳。
2. The letter bore a postmark of March 8, 1983.
   这封信盖有一九八三年三月八日的邮戳。

1. The parcel was postmarked Brighton.
   这邮包盖着布赖顿的邮戳。

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