Periodic vibration
[电] 周期振动
🧩 词语组成解析
periodic
[,pɪrɪ'ɑdɪk]
adj. 周期的;定期的;回归的;间歇的，时而发生的;
🗣️ 情景例句
Thanks for everything, if you ever need a favor in return, just let me know.
感谢你所做的一切，如果你需要我帮忙的话，尽管开口吧。
Play dumb.
装傻！
When Gary told me that he wanted to be a painter, I refused to give him any money.
当加里告诉我他想要当画家的时候，我拒绝给他钱。