pneumolysin

例句：

1. 1. Pneumolysin is a protein thatcan cause lung infections in people with weakened immune systems.
   肺溶素是一种蛋白质，可以导致免疫系统较弱的人肺部感染。
2. 2.Pneumolysin has beenshown to be effective in treating certain typesof lung infections.
   研究表明，肺溶素在治疗某些类型的肺部感染方面是有效的。
3. 3. Pneumolysin isa bacterium that produces atoxin that can cause severe respiratory problems.
   肺溶素是一种细菌，产生一种毒素，可以引起严重的呼吸道问题。