Accustomed to the weak, the heart will gradually weak up, used to rely on, will gradually forget how to depend on ourselves.

习惯了软弱，心也会逐渐软弱起来，习惯了依赖，会渐渐忘记如何依靠自己。

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The Wolf weak up and ran away. However. The stone is too heavy. The Wolf fell down and died. Then these three people were happy.

狼醒了，要逃走，但石头太重了，他倒下去死了。于是，他们三个很高兴。

youdao

His back is weak because he won't try to sit up.

他的背很虚弱，因为他不愿试着坐起来。

youdao

Trembling and weak with emotion, Misses Smith hurried up to her husband.

VOA: special.2009.12.12

Sure those specs might seem weak up against the last smartphone, but its more than enough juice to run 325 (and growing) apps LeapFrog has for it, not to mention that the new unit really is noticeably quicker.

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Industry officials are eager to point out that small cuts in the fuel consumption and emissions of millions of cars add up and have a greater impact overall than what might still be a relatively weak take-up of electric cars.

BBC: Electric motoring: a quiet revolution

Her mother, too weak to sit up in bed, lay against her pillows and inhaled deeply.

NEWYORKER: Temporary