To his surprise he didn't feel too weak. Light-headed certainly, and with a sense of unreality, but able to walk.

令他惊讶的是，他并没有感觉太虚弱，虽然头晕，并有些不真实感，但能走路。

《柯林斯英汉双解大词典》

The patient is too weak to walk.

那个病人太虚弱了，走不动。

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On leaving the hospital, the patient felt almost too weak to walk, but he soon overcame this infirmity.

离开医院时，病人感到虚弱得几乎走不动，但他很快就克服了虚弱。

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Hamiad was now too weak to walk, as were nearly a dozen other elderly and handicapped residents.

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At age 3 he stopped growing and became too weak to walk.

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Mordred was too weak to walk, so Douglas lifted him into the back of the Jeep for what we knew would be the final time, and we all gathered together on the cold linoleum of the vet's office as I bawled my heart out and Mordred laid his head on Douglas' lap, grateful for the comfort.

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