chiming in
The increase in rate of a chemical reaction caused by the presence of a catalyst. / An amount of catalyst, expressed as the increase of the rate of its reaction.
Bearing or producing much or many.
(mineralogy) Lead telluride, an isometric yellowish-white mineral of the galena group.
present participle of chime in
司会者の注意にもかかわらず、数人の出席者が意見を述べ続けて議論が長引いた。
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