You are introducing an English spaker to two of your colleagues.what do you say?
题目
You are introducing an English spaker to two of your colleagues.what do you say?
答案
If your colleagues are also English speakers, then you need not say anything.
If they speak Chinese, you just introduce in Chinese.
So, do you mean the other way round?
"You are introducing two of your colleagues to an English speaker."?
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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