Pems
abbr. pico-electromechanical system 皮[微微]米电子机械系统; Portable Environmental Measuring System 便携式环境测量系统
🗣️ 情景例句
Excuse me. you got a minute?
对不起，能耽误你一分钟吗？
He turned white with amazement.
他害怕得脸都苍白了。
Bad luck! said Mother. It doesn't matter!
“真糟糕！”妈妈说，“没关系！”