lǎo / shī / tōng / guò / huán / jìng / chuàng / shè / bǎ / jiào / shì / bù / zhì / de / gèng / jiā / ān / quán / yǒu / qù

老师通过环境创设，把教室布置得更加安全、有趣。

Through environmental design, the teacher made the classroom safer and more interesting.