难闻的气味 bad breath ; pong

产生难闻的气味 produce terrible gas

难闻气味 offensive odour

难学又乏味 difficult and boring ; difficult and dull

难学而且乏味 Difficult and boring

尝起来美味/难吃/甜 taste good/delicious/bad/sweet

发出难闻的气味 An unpleasant odor

非常难闻的气味 extremely pungent

这个香水的味道真难闻 The really unpleasant scent