Jiàoshì lǐ de zhuōyǐ zhěngqí de pái chéng jǐ háng.
The desks and chairs in the classroom are arranged in neat rows.
Tips
grammar
桌椅 is a coordinate compound - two nouns joined to form a collective category, like English 'tables and chairs'. Chinese loves these pairings: 桌椅 (furniture), 父母 (parents), 山水 (landscape), 笔墨 (writing tools).
