2--I can try to explain the basics. What do you want to know?

1--What are strikes?

2--Every batter has three strikes. When they get three strikes, they are out.

1--Okay, but what about when the umpire calls a ball?

2--Once an umpire calls four balls, then the batter goes to first base.

1--What happens when a pitcher hits a batter with the ball?

2--The batter goes to first base.

1--What if someone is on first base?

2--Then whoever was on first base goes to second base.

1--Oh, okay. What's a no-hitter?

2--A no-hitter is when a team doesn't get a hit throughout the game.

1--So, that's a good thing for the pitcher?

2--Yes, because that means he pitched really well.

===================================
注解：
 
1.basics基础
2.three strikes三振出局
3.pitcher投手

===================================
译文：

1--你能给我解释一下棒球吗?

2--我可以试着解释基础知识。你想知道什么?

1--打击是什么意思？

2--每个击球手都有三振出局。如果他们击了三次，他们就出局了。

1--好的，但是当裁判调用一个球是怎么回事?

2--一旦一个裁判调用四个球,那么击球手就要去打一垒。

1--那投手用球袭击击球手呢?

2--击球手去第一垒。

1--如果有人在一垒，怎么办？

2--那么在一垒的人都能去二垒。

1--嗯。没有击球者是什么意思?

2--没有击球者是指球队整场比赛没有击中一个的时候。

1--所以，这对投球手来说是好事吗？

2--是的，因为投手做的很好。