Definition: a particular smell, often one that is unpleasant Level: C2
旧图书馆发霉的气味让我想起了被遗忘的书籍。
The musty ___odor of the old library reminded me of forgotten books.
刚熄灭的香烟气味令人难以忍受。
The ___odor of recently put-out cigarettes was overwhelming.
化学品泄漏释放出有毒气味，迫使该区域疏散。
The chemical spill released a noxious ___odor that forced the evacuation of the area.
