1 sentence

1. 这周由我值日，放学后要负责打扫教室卫生。

   zhè zhōu yóu wǒ zhí rì, fàng​xué hòu yào fù​zé dǎ​sǎo jiào​shì wèi​shēng.

   It is my turn to be on duty this week, and I am responsible for cleaning the classroom after school.

   Source: Dong Chinese Dictionary