1.
We seal the back of envelopes.
我们把信封的背面封上。
2.
He licked the gummed flap and sealed it shut.
他舐了舐信封的胶水层，封上了信封。
3.
an ice-bound ship, harbour
冰封的船、 港口.
4.
The software and hardware design of remotely controlled sealing and unsealing of plugging module
封堵模块遥控密封和解封的软硬件设计研究
5.
Locked in or covered over by ice.
冰封的被冰封锁的或被冰覆盖的
6.
tuck the flap of an envelope in
把信封的口盖摺进信封里.
7.
Fourth cover: Outside back cover of a periodical.
封四:期刊的封底。
8.
An envelope or wrapper for mail.
封套，信封为邮寄而制的信封或封套
9.
closed or secured with or as if with a seal.
闭着的或由封条封着的。
10.
The information is sent in a sealed envelope.
信息用封口的信封寄出。
11.
The letter bears the seal of the king.
这封信有国王的封印.
12.
a self - sealing envelope.
（不用胶水）封口的信封
13.
ellipsoidal head
椭球体的封头, 椭圆封头
14.
an adhesive envelope
封口涂有胶水的信封
15.
The ( flap of the ) envelope was unstuck.
信封（的封口）没粘住.
16.
Occluding or tending to occlude.
封闭的封闭的或倾向于封闭的
17.
Of or relating to lands held in fee or to the holding of such lands.
封地的或有关封地的或封地所有权的
18.
A landed estate granted in feudal tenure.
封地封建财产制度下的封赏地宅