形容词
中文翻译：密封的
同义词：
['airtight', 'airtightly', 'tightly-sealed']
例句：
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1. The door was air tight to prevent any drafts from entering the room.
门是密封的，以防任何风从房间中进入。
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2. The luggage was air tight so it wouldn't get lost in transit.
行李是密封的，以防在运输过程中丢失。
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3. The seal on the jar is air tight;you can't open it without breaking it.
罐子的密封是密封的，你无法打开它而不破裂。