Chelon
螯合剂
🗣️ 情景例句
Most boys like baseball, but he is an exception.
大多数的男孩喜欢棒球，但他是个例外。
Send a postcard to me when you arrive in Shanghai.
你到上海以后给我发张明信片。
But some time later it began to rain.
但过了一阵子。天下起雨来，