His broad shoulders and prominent forehead gave him a chimpanzee-like appearance.

chimpanzee 是"黑猩猩"的意思，指一种灵长类动物。 -like 是后缀，表示"像...的"，加在名词后构成形容词。 chimpanzee-like 合起来表示"像黑猩猩一样的"，形容外貌特征与黑猩猩相似。