退休的老张任一次滑雪穿鞋时挤了一下脚后跟,发现左脚底大拇趾长了个蚕豆大小的硬结,像磨出来的茧子,老张时常用刀片把“茧子”的表皮刮掉,随后,“茧子”中间渐渐地出现一个针尖大小的黑点,这多少成了老张的一块心病。 The retired old Zhang once squeezed his heel when skiing and wearing shoes. He found that the big sole of his left foot had a long stiff bean-size induration. Like old millstones, Lao Zhang often used a blade to scrape off the skin of the raccoon. Then, in the middle of the “dumplings”, a needle-pointed black spot gradually appeared, which became somewhat of an old Zhang’s heart disease.