Japan’s Prime Minister is appealing to the Japanese people to unite to overcome what he says, is the worst crisis his country has faced since the end of World War II.
what he says 及之后的部分在整个句子中做何成分?这句话前后分别需要逗号么?
强。。。he says理解成插入语,整个句子就容易理顺了
那么逗号要么?
插入语,通常有"逗号"的. 如果定语从句,一般就不加了.