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1.The air canal is a narrow passageway between the lungs and the heart.
空气通道是肺部和心脏之间的狭窄通道。
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2.The air canal is essential for the proper functioning of the respiratory system.
空气通道对于呼吸系统的正常运作至关重要。
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3.Air canals are used to transport gases through the body.
空气通道用于通过身体传输气体。