名词
中文翻译：催化剂
同义词：
['catalyst', 'initiator例句：1. The catalyst is crucial for the reaction to occur.（催化剂对于反应的发生至关重要。）']
例句：
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1. The catalyst is crucial for the reaction to occur.
催化剂对于反应的发生至关重要。
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2. The initiator was responsible for starting the fire.
引发者负责点燃了火。
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3. The catalyst accelerated the chemical reaction.
催化剂加速了化学反应。