Who doesn 't like to sneak a little nub of chocolate before bed to get that warm feeling inside ?
谁不喜欢睡前悄悄顺一小块巧克力的温暖感觉？
A study just published in the proceedings of the national academy of sciences may help resolve this question by getting to the nub of what is going on in a bilingual child 's brain , how a second language affects the way he thinks , and thus in what circumstances being bilingual may be helpful .
