今天我們將談?wù)勅绾伪Ｅ莱焙桶踩?...
Winter in many places means ice skating, sledding and snowball fights. But unless someone is prepared, outdoor fun can also mean frostbite and hypothermia. Today we talk about how to stay warm, dry and safe.Frostbite is damage that happens when skin is exposed to extreme …
在許多地方冬天意味著滑冰，使用雪橇和打雪仗。但是除非你準(zhǔn)備好了，否則戶外的樂趣也意味著有患凍傷和低體溫癥（的危險(xiǎn)）。今天我們將談?wù)勅绾伪Ｅ莱焙桶踩鰝窃谄つw較長(zhǎng)時(shí)間暴露于極冷的環(huán)境中而造成的一種損傷。其主要發(fā)生于手、腳、鼻子以及耳朵。 有些人發(fā)生只限于皮膚的輕微凍傷，這可能不會(huì)造成永久性損傷。但…