Pdm
[电] Pulse-Duration-Modulation的简写
🗣️ 情景例句
And miles to go before I sleep.
在我就寝前还得赶许多哩路。
Promise is debt.
许愿就是债，欠了不容赖。
Why do you keep asking me the same question?
你怎么又问我同样的问题？