bear down
 壓倒,壓彎;擊敗
 bear down /(ˈ)bæ(ə)rˈdaʊn, (ˈ)bɛ(ə)r-/ 不及物動詞
 bear down
      v 1: exert a force with a heavy weight; "The snow bore down on
           the roof" [syn: drag down, bear down on, press down
           on, weigh down]
      2: to make a rush at or sudden attack upon, as in battle; "he
         saw Jess charging at him with a pitchfork" [syn: charge]
      3: contract the abdominal muscles during childbirth to ease
         delivery [syn: overbear]
      4: exert full strength; "The pitcher bore down"
      5: pay special attention to; "The lectures bore down on the
         political background"
      6: exert a force or cause a strain upon; "This tax bears down
         on the lower middle class"