low-grade [ˈloˈɡred]

例句:

• Newsround gives you the low-down on the key figures.
  来自BBC
• Whisk again on low until the mixture is glossy.
  来自BBC
• He is a bit let down by the low grade he got.
  这次成绩不好,他有点气馁.
  
• This is not always true - as with the manufacture of pig iron and steel from low - grade iron ores - but it did lead to the concentration of industrial developments on the coal fields.
  并非一概如此 — 例如从低级铁矿石中生产生铁和钢材的情况一但是这导致了工业发展集中在煤田上.
  
• My son mucked up the car engine by using cheap, low grade gasoline.
  我的儿子使用便宜的低级汽油,汽车引擎损坏了.
  
• I hadn't thought of the implications of low-grade ?
  来自SA