Chelon
螯合剂
🗣️ 情景例句
He felt that his life was no longer worth living.
他觉得他的生命已经没有再活下去的价值了。
What's your nationality?Are you a Japanese?
你的国籍是什么？你是日本人？
Congratulations on you success.
祝贺你的成功。