交易集中到钱包中有什么用，如何解决信任问题，如何防止抵赖？
如何充值法币进系统？如何找到双方都认可的价格点？
既然要做这些问题应该解决了，请详细回答下。
Get you.
each wallet is a node of trading network.
Price matching engine will be integrated into the wallet (as addition)
It support trans BTC, LTC to SDC now in the testnet.
We hope you can use USD and EUR to buy SDC with the illustrious wallet in someday, NOT now.