Commenting on the find, snake expert Robert Henderson, from the milwaukee Museum of Natural history, said: "Worldwide new species of frogs are being discovered and described quite regularly."
2017年6月四级真题(第二套)听力 Section A
柯林斯高阶英汉双解学习词典释义
VERB
发表意见;作出评论
If you comment on something, you give your opinion about it or you give an explanation for it.