She held the little boy by the right hand.

问题描述:

She held the little boy by the right hand.
到底是她用右手牵小男孩,还是她牵小男孩的右手?判断理由?

牵的是小男孩的右手,注意介词是by;
她的右手牵小男孩,则应用介词with.
注意有时细节对句子乃至篇章的理解非常重要.