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。

youdao

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。

youdao