因为他们逃避刀剑，和出了鞘的刀，并上了弦的弓，与刀兵的重灾。

For they fled from the swords, from the drawn sword, and from the bent bow, and from the grievousness of war.

youdao

日落之后，寒意袭人，老人冷得发抖。当他剩下的鱼饵中有一块被咬住时，他就用自己那把带鞘的刀把钓丝给割断了。 。

The old man shivered in the cold that came after sunset. When something took one of his remaining baits, he cut the line with his sheath knife.

youdao

蒂斯罗克之后，来了个高大的年轻人，头上裹着一个插羽毛、镶珠宝的头巾，身边佩一把象牙鞘的弯刀。

After him came a tall young man with a feathered and jewelled turban on his head and an ivory-sheathed scimitar at his side.

youdao

That also happens through development, and in fact, it goes through development and even teenagers are not fully myelinated.

髓鞘的形成也同样发生在发展过程之中,实际上,髓鞘的形成贯穿整个发展过程,即便是青少年的髓鞘也并未完全发育完善

耶鲁公开课 - 心理学导论课程节选

Finally, remember myelination, where you sort of get this fatty sheath over your neuron to make it more effective?

最后,回想一下髓鞘的形成,你会在哪里长出脂肪鞘,去包裹神经元,使得神经元更有效率

耶鲁公开课 - 心理学导论课程节选

If this is the particular kind of axon that is 'myelinated', then it might have a layer of a special substance called myelin in sheathing the axon.

假设这是一种特殊的有髓鞘的轴突,它表面上会像鞘一样地包裹上一层,称为鞘磷脂的特殊物质

耶鲁公开课 - 生物医学工程探索课程节选