virulent strain的用法和樣例：
例句
- The virulent strains had a polysaccharide capsule and formed smooth colonies on agar medium.
有毒菌株具有多糖莢膜它在瓊脂培養基上形成光滑的菌落。 - But she would like to start a conversation about why the United States seems particularly vulnerable to such a virulent strain of anti-intellectualism.
但她想要展開一段對話，討論美國為何似乎特別容易感染反智傳統的有毒菌株。
