动词
中文翻译：密封
同义词：
['seal', 'seal off', 'close', 'fasten', 'secure']
例句：
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1.The package needs to be sealed before it can be shipped.
这个包裹需要在发货前密封。
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2.The door was sealed shut with a heavy padlock.
门被一个沉重的锁牢牢地封住了。
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3. The seams of the dress were sealed with glue.
连衣裙的缝线是用胶水粘合的。