2--I'd like to hire a bike. I think it would be a good idea to do some cycling on Sunday.
 
1--If the weather's fine.
 
2--I am sure it will be. It's been good so far this weekend.
 
1--I know a good place to hire bikes if you want.
 
2--Thanks. That would be really helpful.
 
1--But remember, be careful when you ride a bike. The traffic in Beijing can be dangerous.
 
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注解：
 
1.hire租用     
2.cycling骑自行车    
3.helpful有帮助的

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译文：

1--你这个周末的计划是什么？
2--我想租一辆自行车。我觉得周日骑自行车会是一个不错的主意。
1--如果天气好的话。
2--我肯定天气一定会好的。这周天气一直不错。
1--如果你想租车的话，我知道一个租车的好地方。
2--谢谢，你真是太好了。
1--但是要记住，骑自行车的时候要小心。北京的交通有时候很危险。