名词
中文翻译：触发器
同义词：
['trigger', 'igniter', 'initiator例句：1. The device is a trigger for the alarm system.（这个设备是警报系统的触发器。）2. The chemical reaction is triggered by heat.（化学反应由热引发。）']
例句：
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1. The device is a trigger for the alarm system.
这个设备是警报系统的触发器。
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2. The chemical reaction is triggered by heat.
化学反应由热引发。
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3. The explosion was triggered by a spark.
爆炸是由火花引发的。