How he's able to control the sand so perfectly is anyone's guess, it certainly puts my traditional upside down bucket method to shame.

无人知道他是如何如此精准的控制沙子的，反正肯定是以超乎想象的办法。

youdao

We let the bucket down by a rope.

我们用绳子把吊桶放下去。

《牛津词典》

If I rotate this faster than in two seconds when the bucket is upside-down if physics works, the water should not fall out.

如果我旋转的速度比桶倒过来的两秒钟还快，要是物理原理成立，水就不会掉出来。

youdao

He had just put the bucket down and grabbed the rope when he looked up and saw a thin light at the edge of the pasture.

NEWYORKER: The Tiger��s Wife

"That's great, everybody back to shore" I order, terrified that it's about to bucket down and we'll have ruined thousands of pounds worth of equipment that we need to be using for three more weeks.

BBC: Behind the scenes

We pull each other down, crabs in a bucket.

CNN: Sorry, Bill Richardson: Ted Cruz is plenty Hispanic