每个人都有一个呼吸器官——肺。肺的功能是吸进新鲜空气,给人体供给氧气,呼出废气——二氧化碳。每个人的肺活量都不一样,有的人肺活量挺大,潜水、跑步都很厉害。早在三年级的科学课上,老师就教我们怎样测量肺活量。我决定自己动手做一个简易的肺活量测量器来测量一下自己的肺活量。 Everyone has a respiratory organ - lungs. The function of the lungs is to inhale fresh air, supply oxygen to the body and exhale - carbon dioxide. Everyone’s lung capacity is not the same, some people big lung capacity, diving, running are very powerful. As early as the third grade science class, the teacher taught us how to measure vital capacity. I decided to do it myself a simple spirometer to measure my vital capacity.