remedial

1. ADJ Remedial action is intended to correct something that has been done wrong or that has not been successful. 补救的; 纠正的[正式]

Some authorities are now having to take remedial action. 一些当局现在不得不采取补救行动。

2. ADJ Remedial education is intended to improve a person's ability to read, write, or do mathematics, especially when they find these things difficult. 补习的; 辅导的

...children who required remedial education. …需要补习辅导的孩子们。