Pems
abbr. pico-electromechanical system 皮[微微]米電子機械系統; Portable Environmental Measuring System 便攜式環境測量系統
??? 情景例句
These files are highly confidential, please store them properly.
這些文件是高度機密的，請妥善保存。
If there's anything else I can do,please let me know.
如果有其他東西我能做的，請讓我知道。
Believe it or not!
信不信由你！