Why did the section chief suddenly speak Mandarin to me? A little problem made me go online, and I felt very forced.

First of all, think about whether you have done anything wrong recently, or said something that the section chief shouldn't have said, inadvertently offended the section chief, or said that a colleague betrayed you in front of colleagues, which must have offended your section chief. Or there are some small plots, in short, there is a sense of distance between you and the section chief. Or if the section chief doesn't treat you as one of his own, you should be careful when you work hard. We can't let him catch you and find you, so it's hard at work. See if it's just for others like you! There must be something wrong with you doing this alone. If so, he will have ideas, such as whether he is ready for a promotion. Take it easy. Let's observe first and then draw a conclusion.