2. Physical diagnosis, in medicine, in landscape, is the art of culling the significant from a welter of irrelevant detail. 不论是在医药方面或是风景方面，物理诊断都是将重要细项从不相关的细节中筛选出来的一种艺术。
3. They will tell you how much skill and experience it takes to field countless questions and handle a welter of diverse personalities every hour of the day. 他们会告诉您每日里要圆满地解答数不清的问题、接待难以数计的不同客户，这需要多少巧妙技能和经验。
英英解释
n.
1. a confused multitude of things
2. toss, roll, or rise and fall in an uncontrolled way
3. roll around,
4. be immersed in
