轻车熟路 light carriage, familiar road
Explanation
形容对事情非常熟悉，做起来很容易。
It describes something that is very familiar and easy to do.
Origin Story
从前，有一个经验丰富的车夫，他每天都驾驶马车在同一条路上行驶，这条路他已经走了几十年，路上的每一个坑洼、每棵树木、每座桥梁，他都了如指掌。有一天，他要运送一批重要的货物，货物并不重，所以马车很轻，他驾着这辆轻便的马车，沿着熟悉的路，轻轻松松地就到达了目的地。这便是轻车熟路的由来，它形容的是事情非常熟悉，做起来很容易。这个故事告诉我们，熟能生巧，只要我们坚持不懈地努力，不断地学习和积累经验，就能在任何事情上都能轻车熟路，取得成功。
Once upon a time, there was an experienced driver who drove his carriage on the same road every day. He had been traveling this road for decades, and he knew every pothole, every tree, and every bridge like the back of his hand. One day, he had to transport a batch of important goods, which were not heavy, so the carriage was very light. He drove this light carriage along the familiar road and easily reached his destination. This is where the idiom "qing che shu lu" comes from, it describes something that is very familiar and easy to do. This story tells us that practice makes perfect, as long as we persevere, constantly learn and accumulate experience, we can be adept at anything and achieve success.
Usage
形容对某事非常熟悉，做起来轻而易举。常用于形容做事熟练、容易。
It describes that one is very familiar with something and therefore can easily accomplish it. It's often used to describe that something is skilled and easy.
Examples
-
他轻车熟路地走在那条小路上。
tā qīng chē shú lù de zǒu zài nà tiáo xiǎo lù shang
He walked along that path as if he knew it by heart.
-
对于这个项目，他轻车熟路，能够顺利完成。
duì yú zhège xiàngmù, tā qīng chē shú lù, nénggòu shùnlì wánchéng
He is very familiar with this project and will be able to complete it smoothly.