动词
中文翻译：系紧
同义词：
['tie', 'fasten', 'secure', 'latch']
例句：
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1.He fastened the door securely before leaving.
他离开前把门牢牢地锁上了。
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2. The car's seat belt is a must-have safety feature.
汽车的安全带是必备的安全特性。
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3. She fastened her coat to keep warm in the cold weather.
她在寒冷的天气里把外套系紧以保持温暖。