instructive /ɪnˈstrʌktɪv/ adjective Learner's definition of INSTRUCTIVE
[more instructive; most instructive]
: providing knowledge or information : helping to instruct someone有教育意义的；有启发性的；增进知识的 -
It was very instructive [=informative, educational] to watch the doctors work.观摩医生工作很有教育意义。
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an interesting and instructive lesson寓教于乐的一课