英语语法分析

However, any substitution on the naphthyl ring decreased the bioactivity.

但若萘环上有取代基，将大大降低其生物活性。

Structure of antimicrobial peptides is closely related to their bioactivity.

抗菌肽的结构组成与其生物活性密切相关。

Endotoxin had a lot of bioactivity and caused a series of severity diseases.

内毒素具有许多生物活性，引起一系列严重疾病。