A strong sense of responsibility, careful, serious-minded, pays attention to materials saving.

责任心强，工作细心，认真负责，注重材料的节约。

youdao

The 51-year old Mr. Haraguchi also believes he can tell jokes at meetings and still have a serious-minded staff.

不仅如此，现年51岁的Haraguchi还相信在会议上开点玩笑并不会影响会议的严肃性。

youdao

Students must be serious-minded and can't do other activities irrelevant for the teaching contents in class. Students should complete all the homework on time.

学生上课认真听讲，不得做与上课不相关的事情，按时完成作业。

youdao

From what I can see by the feedback, even hard-core readers (not to mention serious-minded conservatives everywhere) were aghast.

FORBES: Malicious, Fallacious--And Unpatriotic

As the contemporary-art market roared upwards in the 1980s, serious-minded connoisseur collectors were joined by multi-millionaires with huge amounts of disposable income.

ECONOMIST: Basle art fair

To serious-minded 17th Century men and women, the ephemeral bloom of the gorgeous tulip, and the high price attached to it, symbolised the moral dilemma of conspicuous spending.

BBC: Of bulbs and bubbles