名词
中文翻译：安全链钩
同义词：
['safety hook', 'safety pin', 'safety bolt']
例句：
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1.The safety chain hook was securely attached to the door.
安全链钩牢固地挂在了门上。
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2.She used the safety pin to secure her hair.
她用安全别针固定了她的头发。
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3. The safety bolt on the door prevented it from being forced open.
门上的安全螺栓阻止了它被强行打开。