13. They decide to participate in the financing of the building.
他们决定参与楼盘的投资。
还能这样说：
They have made a decision of investing the housing.
They determine to invest the house building.
应用解析：
arrive at a decision 做出决定；
reach a decision 做决定；
with decision 断然
14. We must have long sight when making an investment.
我们投资时要有远见。
还能这样说：
We must have long heads when making an investment.
We must have the foresight to invest.
应用解析：
short sight 近视，缺乏远见；
a sight of 非常多的；
come into sight 呈现在眼前；
heave in sight 出现在地平线上；映入眼帘
15. It proved to be a wise investment.
事实证明，这次投资是明智的。
还能这样说：
The facts proved that the investment was lucrative.
The investment proved to be remunerative.
应用解析：
prove out 证明是合适的；证明是令人满意的；
prove (oneself) to be 证明（自己）是；
prove up 具备……条件；探明
16. I lost a bunch of money on investment this year.
我今年投资输了一些钱。
还能这样说：
I suffered a lot of money in this year's investment.
I did a business at a loss.
应用解析：
a bunch of fives 拳头，手；
the best of the bunch 精华，一批或一群中的最佳者
17. You have no business throwing money like that.
你不该花钱如流水。
还能这样说：
You shouldn't spend money without stint.
You are not supposed to spend money like water.
应用解析：
throw oneself into 积极投身于；
throw out 抛出，扔掉；解雇；
throw up 呕吐；辞职；洗手不干