I'm holding four rods using one hand.

一手拿四根杆。

youdao

When an acrobat wants to keep safety, if he holds one sling using one hand and the other hand fastening the other sling tightly, the end is he holds nothing at all.

他说，杂技演员他想从一根吊绳跳到另一根吊绳的时候，如果他为了安全，既想着用一只手抓住这一根绳，又想着用另外一只手抓住另外一根，最终的结果只有他两根都抓不住。

youdao

On the one hand, you have to trust the algorithm; on the other hand, if you don't trust the algorithm, why are you using spaced repetition software?

一方面，你不得不信任这个算法，另一方面，如果你不信任这个算法，你为什么还使用记忆重复软件？

youdao

It's considered impolite to hand a name card to someone using one hand.

ECONOMIST: Business travel

He said he managed to kick the first two men in the knees and, using one hand, fought off the third.

BBC: Wisbech fish and chip fighter fined for police 'lie'

Advocates have traditionally countered that pen interfaces can be operated using one hand, freeing the other one to cradle the computer or hold the handheld.

ENGADGET: Switched On: Time to write off pen computing