LPS

例句：

1. 1. The LPS in the vaccine is crucial for its effectiveness.
   疫苗中的脂多糖对其效果至关重要。
2. 2. The study found that LPS could trigger an immune response.
   研究发现，脂多糖可以引发免疫反应。
3. 3. The bacteria produces LPS as a defense mechanism against attackers.
   细菌产生脂多糖作为一种防御机制来抵御攻击者。