过敏源可能是大豆，牛奶或者可可。

IzChallengers may be soy, milk or cocoa.

youdao

要调制一杯摩卡咖啡，先要准备一到两小杯浓咖啡，在玻璃杯底部将其与可可粉或糖浆搅匀，接着慢慢倒入蒸好的牛奶进行搅拌。

To make a mocha, begin with one or two shots of espresso coffee. Combine with cocoa powder or syrup in the bottom of the glass.

youdao

从这点来看，65%的美国人更喜欢选择由全脂牛奶和可可脂制成的牛奶巧克力。

At this point, it is accepted that 65% of Americans prefer milk chocolate, which of course requires whole milk and cocoa butter.

youdao