If the price of commercial housing is too high, and no attention is paid to improving the quality, then the sales of commercial housing will decline. Based on this, can it be launched? ['If the sales volume of commercial housing drops, then either the price is too high or the quality of the house is not paid attention to.', 'If the sales volume of commercial housing rises, then it must be to reduce prices and improve housing quality.', 'If the price of commercial housing is too high, if you do not pay attention to improving the quality, the sales of commercial housing will decline.', 'If the price of commercial housing is too high, then even if attention is paid to improving the quality, the sales of commercial housing will decline.']