Sawtooth voltage
[电] 锯齿形电压
🧩 词语组成解析
n. 锯齿
🗣️ 情景例句
making my own decisions, doesn't it?
我自己能做决定， 对吗？
He has not come in yet.
他还没有来。
No, Mom, said Lucy. I forgot the money!
“没有，妈妈，”露西说，“我忘记带钱了！”