cool off
  冷靜下來,變涼
  cool off
       v 1: become quiet or calm, especially after a state of agitation;
            "After the fight both men need to cool off."; "It took a
            while after the baby was born for things to settle down
            again." [syn: calm, calm down, chill out, simmer
            down, settle down, cool it]
       2: lose intensity; "His enthusiasm cooled considerably" [syn: cool,
           cool down]
       3: feel less enamoured of something or somebody