Translation of PrestaShop from English to Chinese Simplified - 517 words completed

I'm still learning this translation project. This is my translation from 01/01/2018 to 01/04/2018 and I'm glad I can contribute.

Here is the link translated:
https://crowdin.com/project/prestashop-official/activity_stream

I translated 517 words. Below images are the prove. I couldn't track back for the "before and after progress" for this post. I''ll add them for the new posts. Hope it's okay. Thanks!