Maybe you remember those old westerns where some outlaw is being chased by a posse, and in order to escape he lies down in shallow water and breathes through a hollow reed.

• 或许你记得那些旧时的西部电影，一些逃亡者被一群人追逐着，并且为了逃跑，他躺在浅水坑里并且用一个芦苇管来呼吸。