serious-minded

She is a serious-minded student who always completes her assignments on time.

她是一个认真的学生，总是按时完成作业。

用法提示：serious-minded 作形容词，修饰 student，表示其认真负责的态度。

The committee needs serious-minded members to handle the budget responsibly.

委员会需要认真的成员来负责任地处理预算。

用法提示：serious-minded 作定语，强调成员具备认真思考的品质。

His serious-minded approach to the project impressed the entire team.

他对项目的认真态度给整个团队留下了深刻印象。

用法提示：serious-minded 作定语，修饰 approach，体现其行事严谨。