他的头发很多英语怎么说

"他的头发很多" 的英文表达可以是 "He has a lot of hair."。

这个表达源于 "头发" 在英语中通常用单数形式 "hair" 来表示。例如，我们可以说 "He has long hair" 来表示 "他有长头发"。

另外，"很多" 的英文表达通常为 "a lot of" 或 "lots of"。例如，"他有很多玩具" 可以用 "He has a lot of toys" 或 "He has lots of toys" 来表示。

综上，"他的头发很多" 的英文表达为 "He has a lot of hair" 或 "He has lots of hair"。

下面是一些例句：

"She has long hair and it's very thick. She has a lot of hair."
"He's always been proud of his thick hair. He has lots of hair."
"My friend has curly hair and it's always very voluminous. She has a lot of hair."
"My sister has fine hair, but she has a lot of it. She has lots of hair."