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to be fragrant; to smell (good)
to stink; to smell (bad)
to glow; to be bright
to smack of; to show hints of
冷蔵庫の中が何か臭うので掃除した。
Something smelled in the fridge, so I cleaned it.
雨の日は排水溝が臭うことがある。
On rainy days the drain can sometimes smell.
焦げた料理がキッチン全体に臭う。
The burned food smells throughout the whole kitchen.