Chelation
[化] 螯合作用; 螯环化
🗣️ 情景例句
Thank you so much,
非常感谢你 。
Has he studied French very long?
他学习法语很长时间吗？
Can't you see? They're round, like the moon. Have one, please.
你没看见吗？它们像月亮一样，圆圆的。请吃一个吧。