envelope
「envelope」的意思
n. 信封，封皮；气囊；（彗核）包层，彗发；（数学）包络线，包络面；（生物）包膜；极限数据
n.信封,封套,封袋,[天]包层,[数]包迹,[生]包膜
「envelope」的用法
envelope信封 - 用作包裹或信件的容器
「envelope」的例句
He put the letter in an envelope before mailing it.
他在寄信前把信装进信封。
She received an envelope with a surprise gift inside.
她收到了一个装有惊喜礼物的信封。
The envelope was addressed to the wrong person.
信封上写错了地址。
He sealed the envelope with a rubber stamp.
他用橡皮章封住了信封。
She checked the envelope for any stamps before mailing it.
她在寄信前检查了信封是否有邮票。
The envelope was damaged during transit.
在运输过程中，信封损坏了。
He opened the envelope carefully to avoid tearing it.
他小心地打开了信封，以免撕破它。
She wrote her name and address on the envelope's flap.
她在信封的 flap 上写了她的名字和地址。
The envelope contained a small package of candy.
信封里装着一小包糖果。
She placed the letter in an envelope and addressed it.
她把信放在一个信封里，并贴上了邮票。