“钻研”造句

魔术师可不是随便玩两下的，他们下了苦功钻研。
Magicians do not dabble, they work hard.

那本书是十年苦心钻研的成果.
The book was the result of ten years'assiduous research.

钻研业务已蔚然成风.
To improve one's professional skill has now become a common practice.

• #钻研