Those of you who have your ping-pong balls can now begin the experiment.

好，我们会到这边来把球给你们,已经拿到球的同学就可以开始试验了。

youdao

But what if you shot a whole bunch of ping pong balls straight down?

但如果将一大堆乒乓球垂直向下射击呢？

youdao

But what if you shot a whole bunch of ping pong balls straight down?

但如果将一大堆乒乓球垂直向下射击呢？

youdao