1.
labyrinth gland
迂回[曲折, 迷宫式]密封盖
2.
I licked the flap of the envelope and sealed it
我舔了舔信封盖口,把它封好
3.
I lick the flap of the envelope and sealed it.
我舔了舔信封盖口,把它封好。
4.
Although I moistened it， the flap dose not stick to the envelope.
虽然我已经湿润了信封封盖，它仍旧无法附著在信封上。
5.
They'll close it up next spring.
明年春天，他们就会把它封盖起来的。
6.
Do not remove the sealing caps from a replacement component until it is to be installe
直至安装时，方可拆开替换部件的封盖。
7.
To coat, pack, or seal with lute.
用封泥盖、包或密封
8.
stick down(the flap of)an envelope
粘住信封（的口盖）.
9.
A fitted covering used to seal a well or large pipe.
封闭盖用以封闭井或大管子的盖子
10.
The letter was buried under the papers.
那封信被文件所盖没。
11.
This letter is postmarked London.
这封信盖有伦敦的邮戳。
12.
The letter is postmarked New York .
这封信盖着纽约的邮戳。
13.
gum down the flap of an envelope
用胶粘住信封的盖口
14.
unstayed flat heads and covers
无支撑平封头和盖板
15.
bellows seal bonnet
波纹管密封型上阀盖
16.
Bill Gates typed out a rely:
比尔?盖茨敲了一封回信：
17.
This letter carries the royal seal.
这封信盖有皇家的印章。
18.
cover ,first-day, cancelled or pre-cancelled
盖销或预先盖销的首日封