名词
中文翻译：开关
同义词：
['switch', 'handle', 'mechanism', 'appliance']
例句：
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1. The engineer tested the new remreed switch to ensure it worked properly.
工程师测试了新的开关以确保其正常工作。
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2. The old manual switch was replaced with a modern remreed switch for better performance.
为了更好的性能，旧的手动开关被现代的开关所取代。
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3. The remreed switch is designed to automatically turn on and off lights in response to motion sensors.
这个开关设计成在运动传感器触发时自动开启和关闭灯光。