學(xué)個詞 Learn A Word: bacteria 細(xì)菌

今天我們要學(xué)的詞是 bacteria. Bacteria 名詞，細(xì)菌。The World Health Organization issued a list of the top 12 types of bacteria that are most dangerous to humans. 世界衛(wèi)生組織公布了對人體危害最嚴(yán)重的12個類別的細(xì)菌清單。New research shows that some friendly bacteria on our skin can produce natural antibiotics and help ward off bad bacteria. 最新研究顯示，人體皮膚上對人體有利的細(xì)菌可以產(chǎn)生天然抗生物質(zhì)，防范有害細(xì)菌的威脅。好的，我們今天學(xué)習(xí)的詞是 bacteria, bacteria, bacteria...