Welcome, dengxinjun, to ETO!
I know nothing about
how Google translates from one language to another. I do know that it does, sometimes, do so rather poorly. In particular with Chinese (Mandarin?) to English (and,
no doubt, with English to Chinese).
But, just so that you know, in this case of your first post, the translation was "adequate": I could understand what you were trying to say even if syntax and other linguistic issues were a bit odd...
Again, Welcome.