When heavy concrete slabs were placed on a platform above the balls, held in position by more grooved tracks, they could be moved with ease.

码好沉重的混凝土砖的石板被摆到这些球上后，非常轻松地就可以让它们沿着木槽轨道移动起来。

youdao

A: on your first question, the talks are yet to be held. I am not in a position to speculate on the details.

答：关于第一个问题，会谈还没有举行，我不想对会谈情况进行猜测。

youdao

Back and neck should be held in a rigid position, while eyes look downward.

背部和颈部应被关押在僵化的立场，而眼睛向下看。

youdao

For two years, now-5-year-old Harouna and his 7-year-old sister, Beldo, were held in bush camps because their father couldn't afford to be in a position where he might have to pay a ransom.

CNN: Kids' lives are nightmares in unstable nations, UNICEF reports

"This institution could well put America in a position to be held hostage to blackmail, to threats based on our military presence around the world, our diplomatic efforts, our geopolitical economic interests, " said Sen.

CNN: U.S. to sign war crimes treaty

Have you ever found yourself in the unenviable position of desiring to terminate an employee only to be held hostage by the fear of losing the knowledge that they possess?

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