动词短语
中文翻译：将某物固定或密封
同义词：
['fasten', 'secure', 'fasten down', 'clamp down', 'latch down']
例句：
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1. Thescrew-down cap is easy to remove and replace.
这种螺丝紧固的盖子很容易拆卸和更换。
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2. The car was securely locked with a screw-down lock.
这辆车用一个螺丝紧固的锁锁得非常牢固。
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3. The engineer had to screw-down the bolts before starting the engine.
工程师在启动发动机之前必须拧紧螺栓。