Definition: used to say what is wrong with someone or something Level: B2
快餐的问题在于它不健康。
___The ___trouble ___with fast food is that it's unhealthy.
社交媒体的麻烦在于它可能让人上瘾。
___The ___trouble ___with social media is that it can be addictive.
公共交通的麻烦在于它经常延误。
___The ___trouble ___with public transport is that it's often delayed.
