请谈一谈what to do with 和 how to deal with

do with的含义较多,如：
表示“处置,安排”如：
What shall I do with it?
怎样处置它好呢?
表示“容忍”如：
I can”t do with such a fellow.
我不能容忍这样的家伙.
将就,如：
Can you do with cold meat for dinner?
晚餐用冷肉,你能将就吗?
deal with在表示“处理”时,与do with意思相同.如：
How shall we deal with (do with) this problem?
我们将如何处理这一问题呢?
但deal with还可以表示“与…相处”如：
That man is easy to deal with.
那个容易接近.
还可以表示“关于,有关”如：
This book deals with Asia.
这本书是论述亚洲的.

同义词啊，没什么区别的哇！
I don't know what to do with this boy.
I don't know how to deal with this boy.

只要记住就是了,这是固定搭配.
do with 和what搭配,deal with和how搭配
例如:
1.could you tell me what to do with these pictures?
2.could you tell me how to deal with these pictures?

do是及物动词,而deal是不及物动词，所以do with 和what搭配,deal with和how搭配！

what to do with 是强调的是‘做什么’
how to deal with 则强调的是‘如何做’