Slippery slope 无底洞 得寸进尺 不可收拾The governor vetoed a bill that would have allowed R-rated movies in cinemas, citing a slippery slope.Vincent did not want his family lending money to their poor neighbors, saying it would lead to a slippery slope where they would be dependent.Lawmakers in America were uncomfortable with legalizing the gateway drug marijuana, since they thought it would lead to a slippery slope.Definition: A slippery slope argument states that a relatively small first step leads to a chain of related events culminating in some significant effect. Etymology: Refers to how an object given a small push over the edge of a slope slides all the way to the bottom.******无底洞 得寸进尺 不可收拾The young couple has agreed not to allow their pet dog to enter the bedroom. However one day, the husband broke the rule and allowed the dog in bed for a little while. This is a slippery slope, now the dog wants to get in their bed every night. 狗狗不准入卧室,一旦让它进,哪怕是一小会儿,就会得寸进尺天天要和主人睡.You can't help lazy people by giving them food and cash. It's a slippery slope and they will expect more from you and become even lazier. The best thing is to give them skills and they can earn a living from that.不要给贫困的人食品和现金,那是无底洞,他们会期待更多,变得更懒,最好的帮助是教他们一些谋生技巧.xxxxxxxxxxxxxxxxxxxxxxxDial it back 回调 回拨 收心Nathan was told to dial back his flamboyant personality when he went to a religious ceremony.When Greg got angry his friend told him to dial it back.It was hot in my home, so I dialed back the heating system.Definition: To reduce in strength or intensity.Etymology: Refers to temperature dials.******回调 回拨 收心Summer vacation is over. Children, you need to dial it back and start to focus on studying. 暑假结束了!孩子们,收收心,要开始好好学习了!One thing is true about raising or improving one's living standard: once it has been raised, it's hard to dial back. 关于改善生活水平有一点是真理,一旦上去回调就很难.