2 sentences

1. 泳池里通常会加入氯来杀菌。

   yǒng​chí lǐ tōng​cháng huì jiā​rù lǜ lái shā​jūn.

   Chlorine is usually added to swimming pools for disinfection.

   Source: Dong Chinese Dictionary

2. 阳光中的紫外线具有天然的杀菌作用。

   yáng​guāng zhōng de zǐ​wài​xiàn jù​yǒu tiān​rán de shā​jūn zuò​yòng.

   The ultraviolet rays in sunlight have a natural sterilizing effect.

   Source: Dong Chinese Dictionary