jiào / xué / bù / néng / gōng / shì / huà / yào / gēn / jù / xué / shēng / de / qíng / kuàng / líng / huó / tiáo / zhěng

教学不能公式化，要根据学生的情况灵活调整。

Teaching cannot be reduced to formulas; it must be adapted to students' circumstances.