harmless [ˈhɑ:rmləs]

例句:

• I would not want to deny them a harmless pleasure.
  我不想剥夺他们这点无伤大雅的乐趣。
  
• Industry has been working at developing harmless substitutes for these gases.
  该行业一直在努力开发一些可以替代这些气体的无害物质。
  
• Johnny was the most persistent and most harmless of her admirers.
  约翰尼是追她的人中最痴心、最没有心机的一个。
  
• Thus, it is harmless when outside the body.
  来自SA
• Harmless womanly things, like spending money on clothes.
  来自A. Brookner
• These proteins are called allergens and are normally harmless.
  来自BBC