Platreating
[机] 加氢精制
🗣️ 情景例句
You really have been working too hard.
你们确实太忙了。
No. I have been away on vacation.
是呀，我休假去了。
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。