jiàoshì zuòwèi tài jǐ shí, kěyǐ bǎ shūbāo fàng dào jiǎobiān, búyào zhàn pángbiān yǐzi

教室座位太挤时，可以把书包放到脚边，不要占旁边椅子。

When the classroom seats are too crowded, you can put your backpack by your feet instead of taking up the seat next to you