习语可以是一个词或短语，要理解习语的意思不能脱离其文化背景。习语一词的含义甚广，其蕴含的意义往往不能从词或词组的字面意思推测而得。习语在所有语言中都很常见。英语习语是日常英语的重要组成部分。在英语的书面语和口语中，存在海量的习语。
儒琴今日习语（Idiom of the Day）
turn back the clock
英文解释
Return to the past or to a previous way of doing things; turn back the clock means go back in time, changing things back to the way they were. The expression, “You can’t turn back the clock” figuratively, means that when time has passed and things have changed, you can’t change them back.
中文解释
turn back the clock 字面意思：倒拨时钟，意思是要回返从前的日子，时光倒流，可惜光阴一去不复返。
原文举例
“So the fact is, after decades of progress, there’s still those who want to turn back the clock to policies more suited to the 1950s than the 21st century.” —President Barack Obama, talking about new state laws restricting abortion and contraception (4/ 26/ 2013)
“所以事实是，经过几十年的进步，还有一些人希望回到更适合20世纪50年代而不是21世纪的政策上来。”——奥巴马总统谈到限制堕胎和避孕的新州法律(2013年4月26日)
To celebrate the upcoming 90th anniversary of the Grand Ole Opry, we’ll turn back the clock and share Tearful Moments that are an important part of Opry history. —Country Weekly (8/ 14/ 2015)
为了庆祝即将到来的奥普里大剧院90周年，我们将回到过去，分享奥普里历史上重要的流泪时刻。-Country Weekly (8/ 14/ 2015)
