Kids are a lot smarter these days. 这年头的小孩聪明多了.
You're perceptive. 你很有理解力. You catch on quickly. 你的领悟力高.
He's a real bright guy. 他极其聪明. She's not a slow child. 她这孩子的学习能力并不低.
He's no dummy. 他不傻. I'm mot as dumb as I look. 我并不像我的相貌一样蠢.
A dummy isn't dumb all the time. 笨人也有灵光的时候.