seal n.密封；印章；海豹；封条 v.密封；盖章
【真题再现】So your fate may have been sealed even before you were conceived .
因此，在你未出生时命运就已经被注定了。
【CET-6,2008.12，阅读】
【联想记单词】联想：sealing face封皮
【活学活用】-Wait!The letter is here!
-等一下！信还在这儿呢！
【画外音】The letter has been sealed without letter in it.