• Young says some crossers make it through the border region after several tries, but others become discouraged.

    VOA: standard.2010.06.07

  • "How to make it,how to build it and then they will become scientists and engineers."

    VOA: standard.2010.02.02

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定