Pnni
[计] PNNI标准
🗣️ 情景例句
I can't drive a car, but I have a motorbike license.
我不会开汽车，但我有摩托车的驾驶执照。
Nothing is difficult to a man who wills.
世上无难事，只怕有心人。
No, it isn't.
也没有。