This offer is firm subject to your acceptance reaching us not later than December 15.
此报盘为实盘,但以我方在12月15日前收到你方答复为准。
Later, an operation helped her to get back part of her sight, but she remained at the institution for six years more.
后来,一次手术帮助她恢复了部分视力。但是,她在这所学校又呆了6年。