大功告成 Great achievement completed
Explanation
大功告成，指巨大的工程或重要的任务宣告完成。表示事情顺利完成，取得圆满成功。
Da gong gao cheng means that a huge project or important task is declared completed. It indicates that things are completed smoothly and a complete success has been achieved.
Origin Story
话说西汉末年，权倾朝野的王莽为了巩固自己的统治，决心效仿周公，大兴土木，建造明堂和雍灵台，并广招天下学者，让他们为自己歌功颂德，著书立说。他下令动员十万多人，日夜赶工，为他撰写颂诗，二十天后，终于完成了这项浩大的工程，这便是“大功告成”的由来。
In the late Western Han Dynasty, Wang Mang, who controlled the imperial court, determined to consolidate his rule by emulating the Duke of Zhou. He launched large-scale construction projects to build Mingtang and Yonglingtai, and gathered scholars from all over the country to write books and compose poems in his praise. He ordered 100,000 people to work day and night on writing these poems, and after 20 days this huge project was finally completed, marking the origin of the idiom "Da Gong Gao Cheng".
Usage
通常用于形容一项大型工程或任务的顺利完成。也用于庆祝目标的达成。
It is usually used to describe the successful completion of a large-scale project or task. It is also used to celebrate the achievement of a goal.
Examples
-
经过几个月的努力，我们终于大功告成了！
jingguo jige yue de nuli, women zhongyu dagong gaocheng le!
After several months of hard work, we have finally completed the project!
-
经过全体员工的共同努力，这个项目终于大功告成了！
jingguo quan ti yuangong de gongtong nuli, zhege xiangmu zhongyu dagong gaocheng le!
Thanks to the joint efforts of all employees, the project has finally been completed!