Believe everybody knows these two idiom certainly: Get half the result with twice the effort and get twice the result with half the effort. I part below around move two idiom tell a story.
相信大家一定知道这两个成语：事倍功半和事半功倍。下面我来分别围绕着两个成语讲一个故事。
Once, mom bought a jin of wool to prepare to knit a dress to give me. But, mom knitted a minute, pulled a month, be free to knit 3 two, do so that knitted a year, be obliged not only not good-looking, some places are uneven still, this is get half the result with twice the effort. Before week, mom bought a jin of wool again, decide a week has been knitted. Mom is free to be knitted, knit, knit! Dare not do other issues, the result that mom knits sweater intently is insufficient a week has been knitted, rate rose 90% , high grade good-looking, this is get twice the result with half the effort!
有一次，妈妈买了一斤毛线准备织一件衣服给我。可是，妈妈织了一分钟，拖了一个月，一有空就织两三行，搞得织了一年，只得不但不好看，有的地方还凹凸不平，这就是事倍功半。前个星期，妈妈又买了一斤毛线，决定一个星期织好。妈妈一有空就织、织、织！不敢干其他的事，妈妈一心一意地织毛衣的结果是不够一个星期就织好了，速度提高了90%，优质的好看，这就是事半功倍！
Actually, do not look down upon these two idiom. Although their word is same, but the meaning forms bright contrast however. Remember composing the composition when course of study afternoon every weekend, I can wander between these two idiom. That Saturday, I write a composition in the home. Result obviously content already was passed in brain, begin to write or paint of have no way is when can be being written. In those days, I feel everything all round is very interesting, but the composition before oneself is written even. Grind dillydally loiter ground to be written to 4 o'clock to just had been written then, the word is not nice, content also is done not have very fresh and interesting. Arrived then next week, heart of my whole body throws exercise, be in imperceptible in, I wrote a composition. Another sees time, early still! Then I use sky beyond time to review, complete other operation.
其实，不要小看这两个成语。虽然他们的字相同，但意思却形成鲜明对比。记得每周末下午写作业时作文，我就会在这两个成语之间徘徊。那个星期六，我在家里写作文。结果明明内容在脑海里已经过了一遍，可写的时候就是无从下笔。那时，我感觉周围的一切都很有趣，可自己面前的作文还要写。于是磨磨蹭蹭地写到4点才写好，字不好看，内容也没有非常新鲜有趣。于是到了下个星期，我全身心投入作业，在不知不觉中，我写完了作文。再一看时间，还早呢！于是我利用空余时间来复习、完成其他作业。
Think carefully now, although these two idiom resemble it is “ twin ” , gratifying is thought of however polarity. Examine the effect that there is get twice the result with half the effort when whether you paid effort to see you do a business namely really. The method that has mastered can get twice the result with half the effort, otherwise get half the result with twice the effort.
现在仔细想想，这两个成语虽像是“双胞胎”，可意思却截然相反。检验你是否真的付出了努力就是看你做事情的时候是否有事半功倍的效果。掌握好的方法就能够事半功倍，否则将事倍功半。(文/王欣)