常见例句用作名词 (n.)Oxygen and carbon dioxide from the air enter through the stoma.氧和二氧化碳从空气中进入气孔。Within the center of the hurricane, downdraughts of dry air create a strangely calm area called the eye.在飓风的中心，干燥的下沉气流创造了一片奇特的平静区域，这就是风眼。 返回 air-hole