Lǎo / shī / xiào / zhe / shuō / zhè / gè / táo / qì / guǐ / jīn / tiān / biǎo / xiàn / bú / cuò

老师笑着说，这个淘气鬼今天表现不错。

The teacher said with a smile that this mischievous little rascal had behaved well today.