The Bristol model is highly instructive.
布里斯托尔模型非常具有启发性。
And besides being a source of fun. such a device is highly instructive, and will serve to clear up many of the mysteries of everyday electricity for you.
而除了作为一种乐趣的来源。这种装置是很有启发性，并有助于消除对日常用电的奥秘许多你。
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。
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。
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