constant [ˈkɑ:nstənt]

例句:

• It's a constant struggle to try to keep them up to par.
  要让他们达标，需要不断努力。
  来自柯林斯例句
• His career constant is a capacity to make news.
  来自BBC
• There was constant jeering and interruption from the floor.
  议员席上不断有人在嘲讽和打岔.
  
• Constant wheelchair use will scuff almost any floor surface.
  任何地板上经常有轮椅走动几乎都会有所磨损。
  
• Dando has remained the band's only constant member.
  来自BBC
• This means that the whole remains "constant".
  来自SA
• Keep the chemicals at a constant temperature.
  把这些化学用品保持在恒温中。
  来自《权威词典》
• The seeing eye dog was the blind man's constant companion.
  导盲犬是盲人的忠实伙伴。
  来自《权威词典》
• Her constant nagging drives me crazy.
  她不停地唠叨使我发狂。
  来自《权威词典》