Just like that, she was gone.

数学的进步不仅仅依靠个人的努力，而是通过几代人的集体工作。

The ocean is a great inspiration for me.

Safety production is the lifeline of mining enterprises and must be consistently emphasized.

经济学的任务不仅在于解释现象，更在于为社会提供实际的建议和政策。