形容词
中文翻译：有指导意义的
同义词：
['instructional', 'instructional']
例句：
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1.The teacher gave us some instructive tips on how to improve our English speaking skills.
老师给了我们一些有用的建议，教我们如何提高英语口语能力。
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2. This book is very instructive for students who want to learn more about history.
这本书对于想要学习更多历史的学生来说非常有指导意义。
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3.The course was very instructive and helped me understand the concepts better.
这门课程非常有益，帮助我更好地理解了这些概念。