• The College of Agriculture and Natural Resources at Michigan State University offers sixty programs of study.

    VOA: special.2009.05.07

  • A year later,Darwin would complete his detailed study of evolution through natural selection.

    VOA: special.2009.12.01

  • Perhaps this is consistent with any study of the natural world."

    VOA: special.2011.03.23

$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