can't transfer SF-Pro-SC.woff2 to .ttf well

[noood]

I have built the project and run in Terminal. I tried to transfer "Roboto.otf" and "SourceHanSansSC-Regular.otf" (English and Chinese font), and it works well.
But when I transfered the "SF-Pro-SC.woff2" to ".ttf", the result looked not good.

Maybe I need to explain the "SF-Pro-SC.woff2". It's not real "PingFang-SC" or "SF Pro". It seems like a custom-made font for "apple.com/cn" in which Chinese font-size is a little smaller than English.(I guess that's why the result went wrong？)

You will see the difference of font-size in the screen captures below, between "apple.com/cn" (with "SF-Pro-SC.woff2") and "apple.com/us" (without "SF-Pro-SC.woff2").