異臭 いしゅう はな
ishūo hanatsu

Godan Verb (tsu)
Expression

1. to give off a bad smell; to give off a stench

その気体 きたい つよ異臭 いしゅう はなつ。
sono kitaiwa tsuyoi ishūo hanatsu.
The gas gives off a strong, unpleasant smell.