grinding ['ɡraɪndɪŋ]

例句:

• "Well," I said, grinding my cigarette nervously into the granite step.
  “好吧，”我边说边紧张不安地把香烟在花岗岩台阶上捻灭。
  
• Civil war in the Sudan has been grinding on for nine years.
  苏丹内战已经持续了9年之久。
  
• Tanks had crossed the border at five fifteen and were grinding south.
  坦克队于5点15分越过边境，正轰隆隆地缓慢向南开进。
  
• He heard the grinding sputter of a motor-cycle passing.
  来自J. Galsworthy
• Mining the limestone, making klinker, grinding klinker.
  来自SA
• It was as if his brain were grinding down.
  来自NEWYORKER