2 sentences for 黴 (méi — mold)

1. 我从没注意到过我房间的霉斑。

   wǒ cóng​méi zhù​yì dào guo wǒ fáng​jiān de méi bān.

   I never noticed the mold in my room.

   Source: OpenSubtitles

2. 要是人没有病，我们也不需要青霉素。

   yào​shi rén méi​yǒu bìng, wǒ​men yě bù​xū​yào qīng​méi​sù.

   If people weren't sick, we wouldn't need penicillin.

   Source: OpenSubtitles