tí àn rén / Lǐ lǎo shī / zài / huì shàng / shuō míng / zhè xiàng / tí àn / zhǐ zài / gǎi shàn / xiào yuán / de / wú zhàng ài shè shī

提案人李老师在会上说明，这项提案旨在改善校园的无障碍设施。

The proposer, Teacher Li, explained at the meeting that the proposal aims to improve accessibility facilities on campus.