levelling

• They could move up to a new level of efficiency .
  它们可以提高效率到一个新的水平。
• To check this, we turn down the threshold level .
  为了检验这一点，我们把阀值调低。
• Each of the states splits up into pairs of levels .
  每一种能态都将裂变成两种能极。
• The tree top is level with the roof .
  树梢和屋顶齐平。
• They levelled 5,000 mu of land .
  他们平整土地五千亩。
• Is it not a pity that she was not on my level ?
  她和我的地位不一样，这难道不可惜吗?
• Inhomogeneity has many levels .
  非均质性有很多等级。
• Water seeks its own level .
  水总是找到自己的水平面。