Bright as you are, you got to smarten up.

虽然你很聪明 但你得点。

I just think it needs to smarten up a little bit for me to actually make the switch full time.

我只是觉得我需要稍微聪明点，才能真正彻底转换。

Sara, come on. Smarten up for once in your life.

拉，拜托 这生就这次聪明点。

Now, look, will you stop having an existential crisis and smarten up?

听好了 不要再自怨自艾了 快打？

I suggest you all smarten yourselves up as much as you can while you are waiting.”

我建议你们在等候时，好好把自己整理，精神些。”

" The Sorting Ceremony will take place in a few minutes in front of the rest of the school. I suggest you all smarten yourselves up as much as you can while you are waiting."

“过几分钟，分院仪式就要在全校师生面前举行。我建议你们在等候时，好好把自己整理，精神些。”