动词
中文翻译：锁底
同义词：
['close', 'seal', 'fasten', 'secure', 'lock']
例句：
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1. The ship's captain locked the bottom to preventleaks.
船长把船底锁住以防漏水。
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2. The box was securely locked atthe bottom of the desk.
盒子被安全地锁在桌子的底部。
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3. The doorwas locked from the inside, so noone could get in.
门从里面锁上了，所以没人能进来。