If you don't pay attention now, you'll get it all wrong later. 如果你现在不注意，后面就会错得一塌糊涂。
Don't pay any attention to Nina - she doesn't know what she's talking about. 别理睬尼娜——她都不知道自己在说什么。
He wasn't paying attention to the safety instructions. 他没有注意安全指示。
My father usually came home early, but he never paid much attention to us kids.
If you really pay attention, you can see how he develops the story and learn some techniques.
See also: attention (NOTICE)