I Learned many things by doing it (对by doing it 提问)

I Learned many things by doing it (对by doing it 提问) I learned by doing things l learned English by doing things.(就划线部分提问)划线部分:by doing thi make it possible by doing sth造句 by doing it does not do A by doing B怎么翻译 多少节课 (用英语表示为) ,I learned English by myself .对"by myself"提问 ( before ()(teach)to speak english by mr.wang ,i learned it by You should wash it by hand{对by hand提问｝ —— —— I was it? By doing 还是 By do? that people make deserts by doing bad things to the learn by doing. 是什么意思?