Mdd
abbr. microgram per square decimeter per day 微克/分米/天（腐蚀速率单位）
🗣️ 情景例句
I'd be glad to tell you what I think.
很高兴告诉你我的想法。
Short accounts make long friends.
帐算清，交情深。
I feel like going to a museum. It's too wet to go walking around London.
我想去博物馆。我们又不能绕着伦敦到处走走，地太湿了。