他简单提到了新项目，但没有详细说明。

He briefly ___mentioned the new project but didn't give details.

老师在颁奖典礼上提到了那些勤奋工作的志愿者。

The teacher ___mentioned the hardworking volunteers during the award ceremony.

老师在课堂上提到了几位著名科学家的研究。

The teacher ___mentioned several famous scientists' research in class.