useless skill
Tu Long Zhi Ji is a Chinese idiom. Pinyin is t ú L ó ngzh ī J ì. Although it has high attainments, it has no practical skills. It's from Zhuangzi · lie yukou.
The origin of Idioms
In Tang Dynasty, Liu Yuxi's he Shi Fu: "the skill of killing the dragon is not great. There's no time to use. It's not like walking on a horse. "
Idiom usage
As an object; refers to a skill without practical value. Example: Zhuangzi · lieyukou: "Zhu Juan learned how to kill the dragon in zhiliyi, and made great achievements in three years, but he didn't use his skills."
Idiom story
Once upon a time, Zhu pingman wanted to learn a unique skill that no one else could, so he sold his family property and went out to study. Three years later, when he came back from school, he introduced how to kill the dragon. Everyone envied him very much. The children asked to see his dragon killing sword. An old man said that although his dragon killing skill was good, there was no dragon to kill now. Zhu pingman suddenly realized this.
useless skill