注意到他用英文怎么说

"注意到"可以用"notice"来表达。这个词来自英语中的"notus"和"notare"，意思是"看到"或"注意到"。

例句：

I noticed that you were looking at me. (我注意到你在看我。)
Have you noticed any changes in his behavior lately? (你最近注意到他行为上的任何变化吗？)
I couldn't help but notice the beautiful view from the window. (我不禁注意到窗外美丽的景色。)