Subharmonic
[电] 次谐波
🗣️ 情景例句
This job is no picnic.
这份工作很累人。
As you sow you shall mow.
种瓜得瓜，种豆得豆。
Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.
几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。