Acetometry
醋酸(比重)测定法
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
Pleased to meet you.
认识你很高兴。
'I am sorry,' he said.'I do not speak English.'
”很抱歉，“他说，”我不会讲英语。”