如果说人体有两只极为精细的收音机兼平衡仪,那就是耳朵。为了保护耳朵,应该粗知一些耳朵的“A B C”——耳道里为什么生有茸毛?它象植物叶片上的毛刺能阻滞灰尘一样,耳道茸毛能阻挡灰尘吹进耳朵深部。它们和S形耳道一起,对声波也有缓冲作用。耳屎(耵聍)为什么不能乱掏?因为它能粘阻灰尘、飞虫等异物。 If the body has two very sophisticated radio and balancer, that is the ear. In order to protect the ears, you should be rough on some of the ears. “A B C” - Why is there a hairspray in the ear canal? Like the glitches on plant leaves that block dust, the ear hairspray prevents dust from blowing into the depths of the ears. Together with the S-shaped ear canal, they also cushion the sound wave. Earwax (耵 聍) Why not dig it? Because it can cling dust, flying insects and other foreign matter.