21.   Some analysts are wondering whether the recent tumble in the market is just another mini-correction or the start of a more serious downturn.

22.   The Federal Reserve, faced with a rapidly slowing economy, unexpectedly cut a key interest rate Wednesday by one-half point in an effort to avert a serious downturn.

23.   The limited level of new supply has been a major factor preventing the apartment market from experiencing a serious downturn despite the declining level of demand.

24.   This time, the cut is aimed at averting a serious economic downturn.

25.   This time, the rate cut is aimed at averting a serious economic downturn.