Cocatalyst
助催化剂
🗣️ 情景例句
How has your visit to Shanghai been so far?
目前你对上海的印象如何？有何收获？
Doesn't matter what you say.
说了也没用。
it is not always safe by the time it reaches the tap.
等水到达龙头时就不一定总是安全的了。