He was struggling to hold onto a rock on the face of the cliff.

他拼命挣扎着去抓悬崖壁上的一块岩石。

《柯林斯英汉双解大词典》

Each Lego brick must have that perfect grasp, strong enough to hold onto another brick but easy enough for a child to pull apart.

每一块乐高积木都必须有完美的抓力，既要足够牢固可以抓牢另一块积木，又要足够容易，让孩子们可以把它拉开。

youdao

I want to hold onto the dream that you give me.

我要坚定持守你赐给我的梦想。

youdao

"So when he finds one thing to hold onto, that's where the possessiveness comes from.

VOA: standard.2010.07.07

By determining how many of those molecules to hold onto, how many to keep in the body, how many to release determines the internal composition with regard to that ion.

通过控制体内这些分子的水平,即体内保有多少,又排出多少,就能够保证内环境中离子组成的稳定

耶鲁公开课 - 生物医学工程探索课程节选

"I think a lot of them are really derivative of "Lost."" With so many viewing choices, getting audiences to tune in to a serialized drama each week is no easy feat, yet "Lost" managed to hold onto a huge,loyal fan base.

VOA: standard.2010.05.25

The president's critics have accused him of using the courts to hold onto power indefinitely.

BBC: Bolivia: New law backs President Evo Morales third term

Because these assets commanded an above-market interest rate, banks had every incentive to hold onto them.

FORBES: Our Schizophrenic Fed

However, there is nothing in the bill that allows the PTO to hold onto any surplus.

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