Semioscillation
半(周期)振荡
🗣️ 情景例句
He made up his mind to give up smoking.
他下决心戒烟。
Teach your grandmother to suck eggs.
班门弄斧。
We're going to work on a farm. Don't you know?
我们打算去农场劳动，你不知道吗？