A box of chocolate 可不可加s

可加s,巧克力糖[C]

chocolate当巧克力讲时不可数，不能加s
当巧克力糖将时可数，可以加

[U] 时 做巧克力解释
[C] 时 做巧克力糖解释

你说的是一盒巧克力那它就应该是被看做整体.!
除非是说1盒5块的巧克力...!

chocolate 上可数的,可以用复数
chocolate
[5tFCkElit]
n.
巧克力, 巧克力色

chocolate
choc.o.late
AHD:[chô“k…-l¹t, chôk“l¹t, ch¼k“-]
D.J.[6t.%8k*lit, 6t.%8klit, 6t.%k-]
K.K.[6t.%k*l!t, 6t.%kl!t, 6t.$k-]
n.（名词）
Fermented, roasted, shelled, and ground cacao seeds, often combined with a sweetener or flavoring agent.
巧克力：经发酵、烘焙、去壳、碾碎并且常加入甜味剂或调味剂的可可豆
A beverage made by mixing water or milk with chocolate.
巧克力软料或巧克力糖
A small, chocolate-covered candy with a hard or soft center.
一种裹有巧克力并且中间为硬心或软心的小糖
Color A grayish to deep reddish brown to deep grayish brown.
【色彩】 巧克力色：一种从灰色到深红棕色到深灰褐色之间的颜色
adj.（形容词）
Made or flavored with chocolate:
用巧克力做的或有巧克力味的：
chocolate pudding.
巧克力布丁
Color Of a grayish