怎么翻译这两个句子，十分感谢

Shanghai is very shrewd in China, so the famous when you go shopping bargaining is indispensable, and that is what bargaining is an art.
保定对，不然你去有道上翻一下

The canniness of Shanghainese is well known round China, so a bargain before purchasing is indispensable, and how to bargain for a satisfied price is a kind of art.

the people in shanghai are famous among china for their being acute.
so when you are shopping, bargaining is quite necessary.then how to bargain can be a kind of art.

it is well known that people of shanghai are shrewd,so when you go shopping,it is neccessary to bargin,then how to bargin is a kind of art

It is well know that Shanghai People are very famous in China, so when you go shopping, the bargaining is essential, but how to bargain is an art.

It is well known in China that shanghai people have quite shrewd mind,
so bargaining is indispensible there when you go shopping,then how to bargain turns to be an art.