求翻译：在政策的严厉调控下，商品房价格2011年已经进入下行通道，2012年依然是严冬。其中一线城市下行压力较二、三线城市更大，全国房地产市场平均价格将继续调整。是什么意思？

Stringent regulation of the policy, real estate prices in 2011 has entered the downstream channel, the 2012 is still winter. The downward pressure of the first-tier cities than the second and third tier cities, the average price of the national real estate market will continue to adjust.

正在翻译，请等待...

Under the policy severe regulation, the commodity apartment price in 2011 already entered the downward channel, in 2012 still was a severe winter.City downward pressure two, three cities are bigger, the nation real estate market average price will continue to adjust.

Under the policy of strict regulation, prices 2011 has entered a downward path, 2012 is still winter. First-tier cities of downward pressure on urban more than two or three lines, national real estate markets will continue to adjust average prices.

正在翻译，请等待...