Subharmonic
[电] 次谐波
🗣️ 情景例句
Railroad stations or airports--Grandpa always tells us he'll get here by himself.
无论是火车站还是机场，爷爷总是说他会自个儿设法到这 。
I'd like a refund on this ticket.
我要退这张票。
What about a quarter past two?
2：15怎样！