有的同学经常用头发卡、火柴棒掏耳屎。其实耳屎是一种保护性物质,味苦而油腻。要是小虫钻进耳眼,尝到苦味,会自动爬出来。灰尘进入耳眼,会被油腻粘住。平常耳屎多了,就会连同粘住的灰尘,自己掉出来。所以老百姓常说:“耳朵不掏不聋”。如果常掏耳朵,不小心刺 Some students often use hair cards, match sticks dig earwax. In fact, ear wax is a protective material, bitter and greasy. If the bug drilled into the ear, taste bitterness, will automatically climb out. Dust into the ear, will be greasy stick. More common earwax, it will stick together with the dust, fall out of their own. So people often say: “ears do not dig without deaf ”. If you often dig ears, accidentally stabbed