instructive adj. 有益的；教育性的；
例句：
It is instructive to see how other countries are tackling the problem.
了解别的国家如何处理这个问题是具有启发性的。
While it will be fun, the seminar also promises to be most instructive.
这次专题讨论会将会很有趣，也一定会非常有启发性。
They all think highly of the book because it is interesting and instructive.
他们高度评价这本书，因为这本书既有趣又有教育意义。
Today, scholars have generated large amounts of instructive research about restaurants.
今天，学者们对餐馆进行了大量有意义的研究。
温馨提示：
