[Steven Zahm]

Connections and its addons are translation ready like most other plugins.

There are no Chinese translations available for Connections or Form, so, for them to show in Chinese, the translations need to be created.

I would suggest focusing on the strings that display on the page. Otherwise it would be daunting task. You can use Loco Translate (or POEdit) to search for those particular and translate them. You will only see English until you do.