trefoil [ˈtriˌfɔɪl, ˈtrɛfˌɔɪl]

例句:

• Northern brown argus, too, on rock-rose, and common blue on bird's-foot trefoil.
  来自THETIMES
• Rumour is already rife here as to Dr. Trefoil's successor.
  关于特雷福伊尔博士的继任人,此间已经谣言蜂起.
  
• They say Dr. Trefoil is very rich.
  人家说,特雷福伊尔博士很富裕.
  
• Single core cable shall be installed in either trefoil or flat formation and secured using cleats.
  单芯电缆可以用三叶草法或者平直法植入.并用夹板固定.
  
• Hop trefoil, bird's foot trefoil and common daisy.
  来自BBC
• The company's trefoil logo is an iconic piece of art.
  来自WSJ