今天的这段对话，在讨论锻炼，
 
下班后去锻炼身体有什么好处
 
来听今天的讲解:
 
A: Why don't you come over for dinner tonight?
 
你今晚过来吃饭怎么样？
 
B: I'd like to, but I don't feel up to it.
 
我想去，但是我觉得没有力气去了。
 
A: What's wrong? Are you sick?
 
怎么了？你生病了吗？
 
B: Not really. I'm just so tired these days. I just feel like going home and taking a nap after work.
 
没有。这些天我只是觉得很累，下班后就想回家小睡一会儿。
 
A: You need to exercise more. It'll give you more energy.
 
你需要多锻炼这样精力才能充沛。
 
B: Maybe you are right. It's about time I started to hit the gym again.
 
也许你是对的，我也该再坚持去健身房锻炼了。