• One hundred sixty thousand Allied troops landed on the desolate stretch of coastline, which was heavily fortified by the Germans.

    VOA: standard.2009.06.02

  • A section of DNA that is responsible for encoding a gene, let's say it's the insulin gene for example, might be some stretch of DNA on a certain chromosome inside your cells, inside the cells of the pancreas.

    一段编码蛋白的DNA序列,我们就拿编码胰岛素的基因来举个例子,它也许是一段DNA基因序列,位于你胰腺细胞里的,某条染色体上

    耶鲁公开课 - 生物医学工程探索课程节选

  • The runway is built on a flat stretch of land on a hill, with a sheer drop on both sides.

    VOA: standard.2010.05.23

$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