xīn / xiào / zhǎng / dào / rèn / nà / tiān / quán / tǐ / jiào / shī / dōu / cān / jiā / le / huān / yíng / huì新校长到任那天,全体教师都参加了欢迎会。All the teachers attended the welcome reception on the new principal's first day in office.