windpipe,chest cavity

1 casting rings × 3 "v" rings bracket × 2 windpipe
architectural shell lace structure to create prototype windpipe
woman recovering after rare windpipe transplant from donor
发音器官) the vocal organs mainly consist of the lungs, windpipe
单 词 表气管(windpipe) 彩虹(rainbow)微重力(microgravity)