how to change the dolphin's language

hello，im a chinese.I want to use the dolphin，how to change the language

First you have to obtain a Chinese language pack; there are some in the market.  Follow the instructions in the language pack to change the language to Chinese.  If you have any issues, contact the developer or post back here in the form.  Language settings are found in the admin, settings, language settings.

Where there is Chinese language pack

I think there are some multi-language packs that include Chinese in the Market.  They may or may not have been tested with 7.2.