hái zi huí jiā xiān xǐ shǒu, zài bǎ shū bāo lā liàn yě jiǎn dān xiāo dú yí biàn

孩子回家先洗手，再把书包拉链也简单消毒一遍。

The child washes his hands first when he gets home, then also gives his backpack zipper a quick disinfect.