扎扎实实

In a sentence

• 他每天扎扎实实地学习，成绩提高得很快。

  He studies diligently every day, and his grades improve quickly.

  Here, '扎扎实实' emphasizes the diligent and thorough manner in which the subject studies.

• 这个工程需要扎扎实实的设计和施工才能成功。

  This project requires thorough design and construction to be successful.

  In this sentence, '扎扎实实' highlights the necessity for meticulous and solid work for the project's success.

• 她在工作中总是扎扎实实，不放过任何细节。

  She always works meticulously, never misses any details.

  Here, '扎扎实实' is used to describe the meticulous and detailed approach to the person's work.