He may very well know rock is most common and so throw something else - quite likely paper.

他或许已经明了石头通常是先出的这个道理，因此会出其它的，很可能会出步。

youdao

He may very well know rock is most common and so throw something else - quite likely paper.

他或许已经明了石头通常是先出的这个道理，因此会出其它的，很可能会出步。

youdao