她的任务是克隆出一个老鼠的神经鞘基因。

Her task was to clone a rat gene called neu.

youdao

他把剑放回鞘内，并为自己对仆人的挑战道歉，声称只是一个误会，然后快速地离开了。

He drew his sword in its sheath and apologized for his defiance of the domestic, claiming a misunderstanding, and quickly left the scene.

youdao

他为他的刀做了一个漂亮的鞘。

He made a very beautiful scabbard for his knife.

youdao

Surrounding the axon is a myelin sheath, which is actually just insulation.

髓鞘将轴突包裹起来,实际上形成了一个绝缘层

耶鲁公开课 - 心理学导论课程节选