It would be a great business if you could do that.
假如你能辦到那樣的話, 可是一筆大生意。
I know the boy whose father is a scentist.
我知道那個男孩的父親是科學家。
The men of our family waded down through our flooded meadows with boathooks, in the hope of being able to grapple a corner of the raft and pull it out of the current towards our bank.