Catalyst life
[化] 催化剂寿命
🧩 词语组成解析
life
[laɪf]
n. 生活，生计;生命，性命;一生，寿命;人生，尘世;
🗣️ 情景例句
Great! It's a date.
太好了！ 就说定了。
Silence in times of suffering is the best.
遭到不幸时，沈默是上策。
I was very glad when the boys won the relay race.
我非常高兴，男同学在接力赛中获胜。