dampen 的意思是泼冷水、减弱。  

In Thailand and Malaysia, debt has ballooned due to booms in the auto and housing markets, and the growing repayment burden has dampened consumer sentiment. 在泰国和马来西亚，由于汽车和住房市场的繁荣导致个人债务激增，不断增加的还款负担抑制了消费者信心。