Definition
This idiom is used to describe someone whose actions do not align with their stated beliefs or intentions.
指某人言行不一，说一套做一套。
That politician always talks a big game during campaigns, but after taking office, he fails to deliver on his promises; he really talks the talk but doesn't walk the walk.
那位政治人物在竞选期间总是说得天花乱坠，但上任后却未能兑现承诺；他确实是说一套做一套。
He always says he cares about the environment, but he often litters, which is clearly a case of talking the talk but not walking the walk.
他总是说自己关心环境，但他经常乱丢垃圾，这显然是说一套做一套。
She constantly emphasizes the importance of teamwork, but in reality, she always acts unilaterally, which is a typical example of talking the talk but not walking the walk.
她不断强调团队合作的重要性，但实际上她总是独断专行，这是典型的说一套做一套。