Sigmic
a. ∑粒子的, 含∑粒子的
🗣️ 情景例句
I need to fit a fourth operation into his schedule.
我得在他的工作表上再加第四个手术。
No. That's nog good either. But give me your number and I'll call you if somebody cancels.
不。也不行。不过请你把电话号码给我，如果友人取消约会，我就打电话通知你。
Yes. He wanted you to ring him.
留了。他要你给他打电话。