rusts [rʌsts]

例句:

• It never rusts or tarnishes.
  它从不生锈，也不会失去光泽。
  
• Copper nails are better than iron nails because the iron rusts.
  铜钉比铁钉好，因为铁会生锈。
  
• The axenic culture of rusts has been achieved on various defined media.
  在各种规定的培养基上可得到锈菌的单体纯净培养物.
  
• Greasy soot coats the concrete walls and an empty ammunition shell rusts on the ground.
  来自BBC