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The Bith hermetically sealed their cities, and retreated from the growing wilds of their planet.
比思人彻底地封闭了他们的城市, 离开了他们不断荒废的星球.
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All of the mail has been very well preserved because the container was hermetically sealed.
由于那只集装箱的密封性极佳,所以时至今日里面的邮件依然保存完好.
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To render an infusion permanently barren, it must be sealed hermetically and boiled.
要长久保持浸液的无生命状态, 必须密封和煮沸.
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