vent

排气口, 出口, 通风孔, 发泄

a hole for the escape of gas or air; external opening of urinary or genital system of a lower vertebrate; a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt; a slit in a garment (as in the back seam of a jacket)

发泄, 排出, 给...开孔