Please unbutton your shirt and let me listen to your heart and lungs .
请你把衬衣解开，让我听一下你的心肺。
Please unbutton your shirt and let me listen to your heart and lung .
请解开你的衬衫，让我听听你的心和肺。
You can unbutton the top button always ( provided you 're not wearing a tie ) , the second button usually , the third button only on disco night at the rollerama .
