单词	tetracycline
释义	tetracycline /ˌtɛtrəˈsʌɪkliːn / noun Medicine Any of a large group of antibiotics with a molecular structure containing four rings. These antibiotics are often obtained from bacteria of the genus Streptomyces. This strain was resistant to methicillin, cephalothin, gentamicin, erythromycin, chloramphenicol and tetracycline.... Moderate acne is often successfully treated with a low-dose oral antibiotic, such as tetracycline or erythromycin. He was treated with a six-month course of a tetracycline and made a slow and steady recovery. Origin 1950s: from tetra- + cyclic + -ine4.
随便看	slidable slidably slide slide action slide copier slide duplicator slide fastener slide guitar Slidell slide projector slider slide rule slide show slide valve slideway sliding door sliding scale sliding seat slight slighting slightingly slightish slightly slightness Sligo

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