于此同时，我们的直立姿势使得气管和食管出于一个近乎垂直的位置。
Simultaneously, our upright posture put the trachea and esophagus in a near-vertical orientation.
在大多数动物身上，气管和食管是分开的，食管在气管的下面。
In most animals, the trachea (the passage for air) and the esophagus (the passage for food) are oriented such that the esophagus is below the trachea.
气管位于所有有气管的动物的食管前面，而且所有动物都有一条和肺连接的气管。
The windpipe is situated in front of the oesophagus in all animals that have a windpipe , and all animals have one that are.
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