动词短语
中文翻译：用直螺纹拧紧同义词
同义词：
['screw into', 'screw down']
例句：
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1. The screws must be tightened to ensure the hinges are secure.
螺丝必须拧紧以确保铰链牢固。
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2. The screws on the door need to be tightened before we open it.
门上的螺丝在打开之前需要拧紧。
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3. The screws holding the shelves together must be checked regularly to prevent them from coming loose.
保持架子固定的螺丝需要定期检查，以防松动。