how to translate this 3tens你与其花钱赌博,不如把钱丢弃

You might as well throw money away as spend it in gambing!
may/might as well+动词原形表示劝告
这种结构表示一种口气非常轻的劝告：
You may/might as well ask him．
你不妨问问他.相当于：
It would do no harm to ask him．
你问问他没坏处.
She said I might as well ask him．
她说我不妨问问他.
这种结构可用于第三人称：
He may as well come with me．
他还不如跟我一起来.
也可以用于第一人称来谈论自己：
As there isn’t anything more to do,I may as well go home early．
既然这里没有别的事要做,我还不如早点回家.