instructive

adj. /ɪnˈstrʌk.tɪv/ C1

有启发性的；有益的

Giving a lot of useful and interesting information.

仙境例句

The Mock Turtle's school days sounded instructive to Alice, though rather wet.

在爱丽丝听来，假海龟的上学经历很有教益，就是湿了点儿。