兢兢业业的英文：
[Literal Meaning]
discreet/cautious
to remain discreet and work hard

[解释]
形容小心谨慎，认真踏实。

[Explanation]
to be cautious and conscientious

[例子]
这里的人兢兢业业地工作，创造出很多财富。

[Example]
People here worked conscientiously and created much wealth.

Cautious and attentive
兢兢业业

He shows great assiduity in all his work.
他对所有工作都兢兢业业.

She is always conscientious and earnest, and quietly immerses herself in her work. No fault can be found with her.
她对工作兢兢业业，埋头苦干，无可挑剔。

Though the work was dull and strew,they plodded away at it in earnest.
虽说工作既单调又繁重，但他们依然兢兢业业。

We shall uphold the Party's traditions from the best period of the last several decades -- hard work and prudent action.
我们要坚持建党几十年来最好时期的传统，就是要艰苦奋斗，谨慎办事，兢兢业业。

He always asked to take on the hardest and most dangerous tasks and carried them out by surmounting all difficulties.
总是主动挑起最艰巨最危险的任务，兢兢业业，排除万难去圆满完成。