大家好！……怎么用美语聊垂头丧气？crestfallen垂头丧气Oh my gosh. You look so crestfallen. What's the matter?天哪，你看起来垂头丧气的。怎么了？I got the results back from my doctor. It turns out my knee injury is as bad as it looks. I broke a little bone in my knee.我得到医生的确诊结果了。我膝盖的伤和它看起来一样糟糕。膝盖上有一根小骨头骨折了。