topsoil
英 ['t?ps??l]
美['tɑp's??l]
- n. 表層土；上層土
考試真題
- What about supply? The three environmental trends—the shortage of fresh water, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand.
出自-2016年6月閱讀原文
- The three environmental trends—the shortage of fresh water, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand.
2016年6月四級真題（第一套）閱讀 Section B