我做事比较认真细心用英文表达是：Im careful in my work；

careful：adj. 仔细的; 小心; 谨慎; 细致的; 注意; 精心的; 慎重的。

work：n. 工作; 职业; 职责; 工作内容; 活计。

She was careful not to let her control slip.

她小心翼翼，不让自己失控。

Word always gets out no matter how careful you are.

无论你多么小心，总会有消息走漏。

Careful maintenance can extend the life of your car.

精心保养可延长汽车寿命。

You'll have to be careful how you frame the question.

如何提出这个问题，你得慎重。

Be careful you don't trip up on the step.

你小心别在台阶上绊倒了。