Pwm
abbr. 脉宽调变（Pulse-Width Modulation）
🗣️ 情景例句
Lacks courtesy is ill-mannered.
不礼貌，举止不当。
Faults are thick while love is thin.
一朝情义淡，样样不顺眼。
'We mustn't buy things we don't need,' I remarked suddenly.
“我们不应该买我们不需要的东西，”我突然发表意见说，