But in previous cases, the tracheas were built with donor organs.

但是在之前的病例中，移植所用的气管是以捐赠气管为基础制造出来的。

I have seen people gasp for air as a suctioning device cleaned their tracheas.

当吸痰器伸入一些病人的气管里去清除淤痰时，我看见他们痛苦地张大嘴去呼吸空气。

Tracheas of rabbits in control group were closed immediately after incision, without any special treatment.

对照组切开兔气管后不进行任何处理，直接闭合气管。

This could be particularly significant for children, for whom donor tracheas are much more difficult to find.

对于难以寻找捐献器官的儿童来说，意义更大。

Windpipes have been grown from stem cells before, but only using the collagen "skeletons" of donated tracheas.

之前，也有由干细胞培育气管的先例，培育中使用的是捐献者的气管胶原蛋白骨架。