在这区域的一个困难的问题是该如何防止欺骗。
A difficult problem in this area is how to guard against fraud.
小心测量像这样的状况，如同在画面的黑暗区域另一边可能欺骗你的米。
Be careful metering in situations like this, as the dark area on the sides of the frame may fool your meter.
与执法联系在买家居住的区域如果您发现资金欺骗。
Contact law enforcement in the area where the buyer lives if you find that the funds are fraudulent.
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