xiào / zhǎng / zài / bì / yè / diǎn / lǐ / shàng / xù / miǎn / tóng / xué / men / jì / xù / nǔ / lì

校长在毕业典礼上勖勉同学们继续努力。

At the graduation ceremony, the principal encouraged the students to keep working hard.