They could not say with confidence that he would be able to walk again after the accident.

他们不能肯定他经过那场事故后还能行走。

《牛津词典》

He told them he was old and feeble and was not able to walk so far.

他告诉他们自己年老体弱，不能走那么远。

《柯林斯英汉双解大词典》

I'm not sure that your fish will be able to remember what your face looks like, but I wouldn't be too surprised if it could remember you in other ways, perhaps by the sound of your footsteps as you walk towards the tank.

我不确定你的鱼是否能记住你的脸，但如果它能以其他方式记住你，也许是通过你走向鱼缸时的脚步声，我也不会太惊讶。

youdao

They will also occasionally walk themselves into corners and not be able to figure a way out.

CNN: SHARE THIS

Giffords is able to stand with assistance, but is not yet able to take steps or walk, said Rhee, adding that therapists are helping Giffords with ways to express her thoughts and, eventually, speak.

CNN: Giffords arrives in Houston

The study of a sustained release oral formulation of the synthetic form of prostacylin showed that patients treated for pulmonary arterial hypertension did not achieve a statistically significant improvement in how far they were able to walk within six minutes by week 16 of the trial.

FORBES: Pharma News: United Therapeutics, Zogenix, Par Pharmaceuticals