“好价钱”的英语可以翻译为：[经] fair price ...

他的庄稼无法卖个好价钱。He can't get a good price for his crops.这幅画要是现在出手,一定能卖个好价钱.The painting would fetch quite a lot if you sold it now.这张画可卖个好价钱.The picture makes a good price....