grinding

• The full-back brought him crashing to the ground .
  后卫把他摔倒在地。
• The police car was gaining ground on the robbers .
  警车逐渐追上劫匪。
• There is a stable ground state of the atom .
  原子有一个稳定的基态。
• A weeping woman cowered on the ground .
  一个哭泣的妇女蜷伏在地上发抖。
• The difficulties of the ground were great .
  地形造成的困难是很严重的。
• Do you want to try the percolator grind ?
  你试用一下过滤咖啡粉怎么样？
• The type of ground management must be decided .
  必须确定土地管理方式。
• All is quiet on the vast expanse of open ground .
  四野茫茫，寂静无声。
• You will run this hotel into the ground .
  你会把这家饭店搞得一团糟的。
• There is a flagstaff in the centre of the ground .
  操场中心有一根旗杆。