14.What you can't hear in his voice—and researchers studying these primates can detect—is that it's now a bit raggedy, slightly hoarse.
瓦尔坦:你听不到他的声音——研究这些灵长类动
的研究人员可
察觉到——它现在有点
烂,有点嘶哑。机翻
「科学快报-科学美国人Science Quickly, from SCIENTIFIC AMERICAN」评价该例句:好评差评指正