Persulphates
(persulphate 的复数) n.[化]过(二)硫酸盐
🗣️ 情景例句
When you have nothing to do, time goes slowly.
你没事做时，时间便过得很慢。
The smith is making shoes for a horse while braining his cat.
铁匠在煅马蹄铁时，他的猫听得头铛铛作响。
Well, which would you prefer?
那么，你觉得那个时间更好些呢？