Yīnyuèhuì / shàng / xuéshēng / men / yìqǐ / yǎnchàng / le / yì / shǒu / yōuměi / de / héchàngqǔ音乐会上,学生们一起演唱了一首优美的合唱曲。At the concert, the students performed a beautiful chorus together.