Pdm
[电] Pulse-Duration-Modulation的简写
🗣️ 情景例句
Every cloud has a silver lining.
再黑暗的地方也有一线光明。
It is not how long but how well we live.
问题不是活得长不长而是活得好不好。
My wife was delighted that things had returned to normal once more.
一切又都恢复了正常，为此我妻子十分高兴。