She is not an intellectual, but is quick on the uptake.

她不是一个智力超群的人，但是理解事物却很快。

《柯林斯英汉双解大词典》

You will have to be patient with her. Shes NOT very quick on the uptake.

你对她得耐心点，她的理解能力不太强。

youdao

You will have to be patient with our grandpa. He's not very quick on the uptake.

你是对爷爷耐心点，他的脑子反应不太 快。

youdao

The dog was quick on the uptake, all the sits and the stays, and it was fine with the other dogs.

NEWYORKER: The Dog

Well, at the risk of offending the vast majority of my readers who are quick on the uptake, let me spell this out in more detail.

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