Mdd
abbr. microgram per square decimeter per day 微克/分米/天（腐蚀速率单位）
🗣️ 情景例句
He accused the government of tearing up the negotiated agreement.
他控告政府撕毁协议。
Pleasure has a sting in its tail.
乐中必有苦。
And she encouraged me when I made up my mind to go to college.
我下决心上大学时，她则给我予鼓励。