就画线部分提问 it's a small ball in the case (画线部分是a small it's a small ball in the case (画线部分是a small ball

就画线部分提问 it's a small ball in the case (画线部分是a small it's a small ball in the case (画线部分是a small ball
就画线部分提问 it's a small ball in the case (画线部分是a small
it's a small ball in the case (画线部分是a small ball

就画线部分提问 it's a small ball in the case (画线部分是a small it's a small ball in the case (画线部分是a small ball
What's in the case?
箱子里是什么?
It's a small ball in the case.
箱子里是一个小球.