Wdm
abbr. 波分多路复用（Wavelength Division Multiplex）
🗣️ 情景例句
Australia is a unique country.
澳大利亚是世上独一无二的国家。
The recent rain has had a bad effect on the crops.
最近的那场雨对庄嫁的影响不好。
How long has this factory been open?
这家工厂建成有多久了？