Chelon
螯合剂
🗣️ 情景例句
What's your occupation?
你的职业是什么？
The first several months were a difficult time.
所以头几个月过得有些艰难。
But I'm learning to skate. What's the weather like in Australia?
不过我正在学溜冰。澳大利亚天气怎样？