当我们走进医院的诊断室,首先映入眼帘的是几乎所有医生胸前都带有听诊器.听诊器是医生最常用的诊断用具,是医生的标志,现代医学始于听诊器的发明,而听诊器的发明却与翘翘板有一段不解之缘. When we entered the hospital’s diagnostic room, the first thing that caught my eye was that almost all doctors had stethoscopes on their chests. Stethoscopes were the most commonly used diagnostic tools for doctors and they were the doctor’s symbols. Modern medicine started with the invention of stethoscopes, and stethoscopes. The invention has a relationship with the seesaw.