名词
中文翻译：密封圈
同义词：
['plastic seal', 'rubber band']
例句：
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1. The crown cork is asmall piece of plastic that keeps the bottleclosed.
密封圈是一小片塑料，用来保持瓶子封闭。
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2. The crown corkwas so tight that it couldn'tbe opened even with a screwdriver.
密封圈太紧了，连螺丝刀都打不开。
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3. The crown cork was usedto prevent air from escapingduring transportation.
密封圈用于在运输过程中防止空气泄漏。