They're also expensive, especially when you factor in the average college student's limited budget, typically costing hundreds of dollars every semester.
出自-2013年6月阅读原文
Furthermore, students will be able to purchase sections of the text instead of buying the whole thing, with individual chapters costing as little as $200.
出自-2013年6月阅读原文
英语六级真题
And lack of recovery一whether by disrupting sleep with thoughts of work or having continuous cognitive arousal by watching our phones一is costing our companies $62 billion a year in lost productivity.
2018年12月六级真题（第一套）阅读 Section B
This may end up costing you opportunities for promotions or pay raises.
2019年12月六级真题（第一套）听力 Section C
柯林斯高阶英汉双解学习词典释义
N-VAR
成本估算
A costing is an estimate of all the costs involved in a project or a business venture.