兢兢业业 diligent and conscientious
Explanation
兢兢业业形容做事谨慎、勤恳。兢兢：小心谨慎的样子；业业：恐惧的样子。
Jing jing ye ye describes someone who works diligently and conscientiously. Jing jing: careful and cautious; ye ye: fearful.
Origin Story
东晋名臣陶侃，勤政爱民，他治理荆州时，政务繁忙，但他从不怠慢，一丝不苟。他曾留下许多关于勤俭节约和认真工作的典故，如冬天积蓄造船剩下的木屑以备吸潮之用，甚至用竹屑、竹枝制成钉子再造船，体现了他兢兢业业的工作态度。陶侃对待工作认真负责，勤政廉洁，成为后世官员效仿的楷模。他的故事流传至今，激励着人们要以认真负责的态度对待工作和生活。
Tao Kan, a famous minister of the Eastern Jin Dynasty, was a diligent and conscientious official. When he governed Jingzhou Province, he was always meticulous and conscientious despite the heavy workload. He left behind many anecdotes about frugality and hard work, such as saving leftover wood shavings from shipbuilding to absorb moisture in winter, and even using bamboo shavings and branches to make nails to build ships again. His story has been passed down to this day, encouraging people to approach their work and lives with diligence and responsibility.
Usage
用于形容一个人做事认真，勤奋，一丝不苟。
Used to describe someone who is diligent, hardworking, and meticulous in their work.
Examples
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他兢兢业业地工作，深受领导赏识。
ta jing jing ye ye de gong zuo,shen shou ling dao shang shi.lao zhang jing jing ye ye ji shi nian ru yi ri de gong zuo,zhong yu tui xiu le
He worked diligently and conscientiously, and was deeply appreciated by his superiors.
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老张兢兢业业几十年如一日地工作，终于退休了
Old Zhang worked diligently and conscientiously for decades, and finally retired