W: We should buy a car. 我们应该买辆车了。
M: It costs a lot. 这要花很多钱。
W: It's no problem for our family. 对我们家来说,这不成问题。
M: Let's send our son to study in America. 让我们把儿子送去美国读书吧。
W: That costs a lot. 这要花很多钱。
M: I believe it's worth it. 我相信这是值得的。