“痴呆”这一统称里包括多种不同的疾病。Within the umbrella term "dementia" there are many different kinds of disease.在19世纪60年代早期，布莱顿患上了老年痴呆症。In the early 1960s, Blyton fell victim to Alzheimer's disease.那些患老年痴呆症的人到底出了什么问题？What exactly ...
Car horns toot as cyclists dart precariously through the traffic.骑车人危险地在车流中飞速穿行时，汽车喇叭的嘟嘟声响成一片。The hunter-gatherer lifestyle today survives precariously in remote regions.今天狩猎采集的生活方式在偏远地区侥幸留存了下来。The hotel was perched prec...