Complexones
氨羧络合剂; 络合滴定试剂
🗣️ 情景例句
They're open.
店开着。
He plays with my friends every day.
他每天都和我的朋友玩。
'I don't know,' I answered, 'Tommy's been to the toilet three times this morning, but I haven't had any change yet!'
“我不知道”，我回答说，“今天上午汤米去了3次厕所了，但我还没看到硬币！”