yī / shēng / jiàn / yì / tā / ān / zhuāng / jiǎ / tǐ / yǐ / huī / fù / xī / guān / jié / de / gōng / néng医生建议他安装假体,以恢复膝关节的功能。The doctor recommended that he receive an implant to restore the function of his knee joint.