Complexones
氨羧络合剂; 络合滴定试剂
🗣️ 情景例句
Good morning. My name is Richard Stewart.
早安。我叫Richard Stewart。
Open your book,please.
请把书打开。
I don't understand! What do you mean? asked Mrs Brown.
“我不懂！你说的是什么意思？”布朗夫人问道。