Chelon
螯合剂
🗣️ 情景例句
Do you want to do something this Sunday? John and I would like you to come over for a party.
你星期日要不要做什么事？约翰和我想请你过来参加宴会。
I was born in a little town not far from here.
我出生在离这儿不远的小城市里。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。