语言学家对俚语没有简单明确的定义，但他们一致认为，俚语是一种不断变化的语言现象，存在于世界各地的亚文化中。俚语是一种非正式的词汇(单词、短语和语言用法)，常见于口头交谈，但在正式写作中避免使用。因为俚语并不总是从字面意义上讲得通，所以您需要熟悉每个俚语的意思和用法。英语俚语是日常英语的重要组成部分。
儒琴今日英语俚语 （English Slang of the Day)
dial back
英文解释
To lessen something, especially in intensity or frequency；to reduce something or make it less extreme; to reduce (one’s energy or intensity); to restrain (a feeling or action)；Synonyms （同义词）: de-emphasize, downplay.
中文解释
减少，尤指在强度或频率上减少; 减少或使之不那么极端; 减少(某人的能量或强度); 抑制(感情或行动)。
原文举例
The candidates have dialed back their attacks on each other, but they are still making their differences clear.
候选人已经减少了对彼此的攻击，但他们仍在表明各自的分歧。
I could barely move my arms all week—I guess it’s time to dial back the workouts!
我整个星期胳膊都动不了了——我想是时候减少锻炼了!
To see how, look no further than mid-December in Brussels. With a little more than three months until Brexit day, May uncharacteristically got in the face of the European Commission’s Jean-Claude Juncker, challenging him about what he may or may not have said about her. Later he uncharacteristically warned Britain’s lawmakers to dial back anti-European Union rhetoric.
12月中旬的布鲁塞尔峰会就是一个例子。距离英国脱欧还有三个多月的时间，梅一反常态地面对欧盟委员会的让-克洛德·容克，质问他是否说了关于她的事情。随后，他一反常态地警告英国议员们减少发表反欧盟言论。
Biden, Xi Jinping Dial Back Rancor in Summit to Stabilize Ties. Modest U.S.-China progress is likely to be quickly tested by deep underlying frictions.
拜登与习近平在峰会上缓和敌意以稳定关系。美中之间的适度进展可能很快会因深层次的摩擦而受到考验。（WSJ By Andrew Restuccia Nov. 15, 2023 9:49 pm ET）
Top CEOs press Trudeau to dial back post-COVID spending plans. One of Canada’s largest business groups is calling on Prime Minister Justin Trudeau’s government to pare back stimulus plans, and turn its attention to climate transition goals and innovation strategies to address future economic challenges.
顶级首席执行官们敦促特鲁多缩减疫情后的支出计划。加拿大最大的商业团体之一呼吁总理特鲁多的政府削减刺激计划，并将注意力转向气候过渡目标和创新战略，以应对未来的经济挑战。(bnnbloomberg.ca Feb 25, 2022)
