noiselessly ['nɔɪzləslɪ]

例句:

• I shut the door noiselessly behind me.
  我把门轻轻地带上。
  
• The piston slides noiselessly up and down.
  这个活塞上下活动,没有响声.
  
• When she was frightened she darted noiselessly like a kingfisher.
  她受惊的时候,就像一只一声不响地急投疾枪的翠鸟.
  
• She bent her knees and plucked it noiselessly from the belt.
  来自NEWYORKER
• He went out to listen, leaning over the bannister and sliding noiselessly down, a few steps at a time.
  来自NEWYORKER