Hints: 本期學習的字源：und=flo,overflow流動、泛濫 Taiwan Yangtze River 單詞不需要大寫，單詞與例句或不同詞條之間換行即可。 注解中詳細介紹了單詞的拆分與釋義，是學習字源分析的重中之重！一定記得聽寫后來看注解！
abundant undulate From the top of the hill, you can see undulating fields stretching to the horizon. abound The waters around Taiwan abound in fish. inundate Millions of acres of land were inundated in last year's Yangtze River floods. redundant The word "most" in the expression "most extreme" is quite redundant.
From the top of the hill, you can see undulating fields stretching to the horizon. 站在山丘上，你可以看到起伏的原野綿延到天邊。 The waters around Taiwan abound in fish. 臺灣沿海水域富于漁產。 Millions of acres of land were inundated in last year's Yangtze River floods. 幾百萬英畝的陸地在去年長江洪水中淹沒。 The word "most" in the expression "most extreme" is quite redundant. “最極端”一詞中的“最”字完全是多余的。