CHOCOLATE作可数名词时是有巧克力糖块的意思.所以可以加S.a box of chocolates /HAVE ANOTHER CHOCOLATE
但如果作为
1.事物的名字时
2.作巧克力饮料时
3.形容颜色即深褐色、巧克力色时.是不可数的.
它还是个形容词即用巧克力制成,巧克力色的的意思.
不可数
a hard brown sweet food made from COCOA beans,used in cooking to add flavour to cakes,etc.or eaten as a sweet/candy 巧克力；朱古力
Eg:a bar/piece of chocolate 一条/一块巧克力 a chocolate cake
可数
a sweet/candy that is made of or covered with chocolate 巧克力糖；加心巧克力
Eg:a box of chocolates 一盒巧克力糖