lǎo / shī / tí / xǐng / dà / jiā / bù / yào / yīn / wèi / xiǎo / shì / dòng / nù / yào / xiān / lěng / jìng / xià / lái

老师提醒大家不要因为小事动怒，要先冷静下来。

The teacher reminded everyone not to get angry over small matters and to calm down first.