单词：Gram-negative bacteria
Gram-negative bacteria的用法和样例：
例句
- Endotoxin is the key etiologic factor of pulmonary damage secondary to severe infection of Gram negative bacilli.内毒素血症是严重革兰氏阴性菌感染导致肺损害发生的关键因素。
- Lipopolysaccharides are a major component of the cell walls of Gram-negative bacteria.脂多糖是革兰氏阴性菌细胞壁的重要组成成分。
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