头部很大英语怎么说

如果你想表达头部很大，你可以使用以下英文表达：
"The person has a big head."
"The person's head is large."
在这里，"head" 是指人的头部，"big" 和 "large" 都是形容词，表示 "大" 的意思。
这个表达可以用在讨论人的体型或特征时，也可以在讨论某个物体的大小时使用。例如：
"I can't believe how big his head is! It's almost as big as a basketball."
"She has a small frame, but her head is quite large."
"This watermelon has a really large head. It must be ripe."
希望这些信息对你有帮助。