She's afraid she won't be able to attend your class this afternoon though.
出自-2014年6月听力原文
Furthermore, students will be able to purchase sections of the text instead of buying the whole thing, with individual chapters costing as little as $
出自-2013年6月阅读原文
Few people are able to resist alcohol's temptations.
出自-2013年6月阅读原文