给他一盒巧克力用英文怎么说

You can say "Give him a box of chocolate."

The phrase "Give him a box of chocolate" is a simple, straightforward way of expressing the idea of handing over a box of chocolate to someone.

Example sentences in Engpsh with their Chinese translations:

Can you give her a box of chocolate for her birthday? (你能给她一盒巧克力作为生日礼物吗？)
I bought a box of chocolates for my friend as a thank you gift. (我给我的朋友买了一盒巧克力作为感谢礼物。)
Let's give the teacher a box of chocolate to show our appreciation. (让我们给老师一盒巧克力以表示我们的感激之情。)