ratchets

例句:

• The news ratchets up the pressure on Swiss bank secrecy.
  这一消息加大了瑞士银行保密方面的压力.
  
• Eat too little, and your body ratchets down its metabolism.
  吃得太少, 身体就会减慢新陈代谢.
  
• The federal law's structure steadily ratchets up the push to change.
  来自WSJ
• Evan's Freedom Pass ratchets up the tension and speed - with constant arpeggios, blaring trumpets and snaking sax.
  来自BBC
• It really pains you every time science ratchets down a few notches your undetectable miracle worker.
  来自SA