2 sentences

1. 全校师生都沉浸在运动会胜利的喜悦中。

   quán​xiào shī​shēng dōu chén​jìn zài yùn​dòng​huì shèng​lì de xǐ​yuè zhōng.

   The entire school's teachers and students were immersed in the joy of the sports meet victory.

   Source: Dong Chinese Dictionary

2. 老师在全校师生面前表扬了他的见义勇为。

   lǎo​shī zài quán​xiào shī​shēng miàn​qián biǎo​yáng le tā de jiàn​yì​yǒng​wéi.

   The teacher praised his courageous act in front of the whole school.

   Source: Dong Chinese Dictionary