Bonds are bought and sold daily on major securities exchanges.
出自-2014年6月阅读原文
He wears a coat bought in the mall
出自-2014年6月听力原文
We think this is the way the future is going to work," said Kyle Dickson, co-director of research and the mobile learning initiative at Abilene Christian University in Texas, which has bought more than 600 iPhones and 300 iPods for students Although plenty of students take their laptops to class, they don't take them everywhere and would prefer something lighter
出自-2013年6月阅读原文