Two boxes of chocolates can be expressed as "two boxes of chocolates" in Engpsh.
This is a straightforward translation of the Chinese phrase, and is a commonly used expression in Engpsh-speaking countries to refer to multiple boxes of chocolates.
Example sentences:
I bought two boxes of chocolates for my mom's birthday.
The store was having a sale, so I got two boxes of chocolates for the price of one.
I wanted to share my sweet tooth with my friend, so I gave her one of the two boxes of chocolates.
Example sentences translated to Chinese:
我为妈妈的生日买了两盒巧克力。
商店正在打折，所以我可以以一盒的价格买到两盒巧克力。
我想和朋友分享我的甜食癖，所以我把其中一盒巧克力送给了她。