Zhè / miàn / qiáng / shàng / de / huī / ní / yǐ / jīng / tuō / luò / xū / yào / chóng / xīn / xiū / bǔ

这面墙上的灰泥已经脱落，需要重新修补。

The plaster on this wall has already come off and needs to be repaired.