20. A Boat in the Tub 浴缸里的船

He fills the tub. He fills it with warm water. He gets in the tub. He plays with his rubber boat. The rubber boat floats on the water. He pushes the boat down. He pushes it to the bottom. He lets it go. It pops up to the top. It floats on top of the water.

他把浴缸装满。他把它装满了温水。他进了浴缸。他玩他的橡皮船。橡皮船漂浮在水面上。他把船推下去。他把它推到底。他放手了。它会弹出到顶部。它漂浮在水面上。