lǎo shī / zài / bì yè / diǎn lǐ / shàng / miǎn lì / tóng xué men / zhǐ zhēng zhāo xī / yòng / xíng dòng / shí xiàn / zì jǐ / de / lǐ xiǎng

老师在毕业典礼上勉励同学们只争朝夕，用行动实现自己的理想。

At the graduation ceremony, the teacher encouraged the students to seize every moment and realize their dreams through action.