thinner

As she looked up to see who I meant — though already knowing, probably, from my tone — suddenly he looked at her, the thinner one, the boyish one, the youngest, perhaps.

当她抬头看向我所指的人时——也许从我的声音里就已经听出来了——忽然，他看着她，那个最瘦的，最孩子气的，也许是最年轻的男孩。