书在手里用英文怎么说

"书在手里"可以用英文表示为"have a book in hand"或者"hold a book in hand"。这个短语的来源是古英语中的"bēc on honde"，意思是手中拿着书。

下面是一些英文例句及其中文翻译：

I always have a book in hand when I'm on the train. 我在火车上总是手中拿着一本书。
She sat in the park with a book in hand, enjoying the sunshine. 她坐在公园里，手中拿着一本书，享受着阳光。
He was so engrossed in the book he was reading that he didn't notice the time passing by. 他看书时如此沉浸，以至于没有注意到时间流逝。