Sigma.
[医] 千分之一秒
🗣️ 情景例句
I have been talking to a group of salesmen
我一直在与一群推销人员谈话
She has a particular interest in painting.
她特别爱好绘画。
We'd like you to consider our request once again.
我们希望贵方再次考虑我们的要求。