VOA慢速英语2014.05.23 皮肤, 淋巴管, 英语, common, stopped

Rebecca949

Elephantiasis can cause swelling or enlargement of skin and tissue. The cause is a tiny worm that enters and lives in lymphatic tubes for six to eight years.象皮病能够引起皮肤或组织肿胀.其病因是一种微小的蠕虫进入到淋巴管并存活6到8年.
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