贝基的解决办法：只要需要开始敲击，就在你的羊毛手套指尖剪一个小口(假如你不介意剪破你的冬季穿着品)让一个手指冒出来。

Becky's solution: Cut a tiny slit in your wool gloves (assuming you don't mind slicing up your winter wear) to allow a finger to pop out whenever you need to start tapping.

youdao

这样现在你们中的每一个都是一个层，但是不要忘记在你前面你有一个朋友，位于一条手臂的长度，这个长度是你的臂膀至你的手指尖的相等距离。

So now each one of you is one layer but don't forget that you have a friend in front of you which is arms length your arm to tip of your fingers is again equal distance.

youdao

我画了一个小点在他的手指尖。

I drew a little dot on the tip of his fingers.

youdao