孩子们在操场上打棒球。
The kids are playing ___baseball on the playground.
这个赛季我们已经看了十场棒球赛。
We've watched ten ___baseballs this season.
我哥哥喜欢打棒球。
My brother likes to play ___baseball.
棒球是我最喜欢的运动。
___Baseball is my favourite sport.