Chelon
螯合劑
??? 情景例句
I remember your parents' first house very well.
我還清楚記得你父母的第一棟房子。
I can't do two things at the same time.
我只有一雙手。
For him, this will be an entirely new hobby.
對(duì)于他來說，這將是一種全新的愛好。