We aren't going, for the simple reason that we can't afford it.
我们不去,原因很简单,我们负担不起。
My father is over 60 years old.
我父亲已年过六十了。
OK. We can get some more tomorrow. We should finish the floor now. Can you take the other end of this piece of wood? Now you have to pull it to make the surface smooth like that.