His weak eyes roved hither and thither but it was his keen scent and acute hearing which first located the ape-man.

他那双微弱的眼睛四处游荡， 但首先找到猿人的是他敏锐的嗅觉和敏锐的听觉。

Witches have red eyes, and cannot see far, but they have a keen scent like the beasts, and are aware when human beings draw near.

女巫的眼睛是红色的， 不能看得很远，但她们的嗅觉却和野兽一样敏锐，当人类靠近时， 她们会有所察觉。