After Manchester City officials announced the signing of Diaz for 65 million, Guardiola has already paid 400 million pounds for the transformation of Manchester City's defense. However, after Manchester City won the Premier League title, the FA Cup and other domestic championships, they have not been able to go further in the most important UEFA Champions League. What do you think is the reason why Manchester City has been unable to make a breakthrough in the Champions League?

亚搏APP手机版曼城官方宣布以6500万英镑签下亚搏体育app下载客户端迪亚兹之后，瓜迪奥拉已经为曼城防务转型支付了4亿英镑。 但是，在曼城赢得英超联赛冠军，足总杯和其他国内冠军之后，他们却未亚搏体育app下载客户端能在最重要的欧洲冠军联赛中走得更远。您认为曼城未能在冠军联赛中取得突破的原因是什么？