before you put it into practice,you will never know whether

before you put it into practice,you will never know whether You will never know 如何翻译：“ You will be finished before you know it?” I will be back before you know it意思? Do you know ___ tomorrow?a.whether will it rain b.if it will You will never know that.. The theory must be put into practice before it is fully acce You will get from this book what you put into it.怎么翻译? 冷夕you will never know what you can do till you try it. 翻译:To know the theory is one thing; to put it into practice before you will know it,your children will have grown up这句话哪 英语翻译you put water into a cup ,it will be come up with the cu