tā / de / fā / yán / zhǐ / shì / pāo / zhuān / yǐn / yù / xī / wàng / néng / tīng / dào / gèng / duō / jiàn / yì

他的发言只是抛砖引玉，希望能听到更多建议。

His speech was just a modest opening to invite more suggestions.