北京哪个医院治疗白癜风安全 https://wapyyk.39.net/bj/zhuanke/89ac7.htmlTED英语演讲课
给心灵放个假吧
演讲题目：Whydosomepeoplesnoresoloudly?
演讲简介：
打鼾看似无害，但可能是更危险的信号。那么，究竟是什么导致打鼾呢?阿莱娜·沃恩(AlaynaVaughan)深入研究了这种令人烦恼的睡眠障碍……
中英文字幕
Aleathermaskthatclampsthemouthshut.Acannonballsewnintoasoldier’suniform.Andamachinethatdeliverssuddenelectricalpulses.Theseolditemswereallintendedtreatmentsforaproblemthathashauntedhumanityformillennia:snoring.Itmightseemharmless,butsnoringcanbeasignofsomethingmoredangerous.So,whatexactlycausessnoring?Andwhendoesitbe
