Is it possible to change language for my Amazon Appstore?

I found default language of my amazon appstore is English. Is it possible to change the language to a non-English language?

My Amazon ID was registered from amazon global website. The current language of my mobile phone is not English. And my amazon appstore is the latest version, V30.16.

I failed to find any options to change language in Settings of Amazon Appstore.

Any ideas?

— modified on Dec 21, 2017, 4:07:46 AM

Screenshot for Settings in amazon appstore

I found a way some like one for Google. It seems that you have to set country(language) in your amazon account (other than amazon appstore setting) although I have not succeeded in setting my language yet.

— modified on Dec 23, 2017, 3:43:50 PM