catalyst

US /ˈkætlɪst/

UK /ˈkætəlɪst/

B2 中高級多益
n. (c./u.)名詞 (可數/不可數)催化劑
Global warming may be a catalyst for the use of clean energy
n. (c./u.)名詞 (可數/不可數)觸媒
The scientist used a specific catalyst in the experiment in order to cause a much quicker chemical reaction

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