用汉语解释就是： how it is.它的原理就是这样. how is it.为什么这样. 再问： 麻烦您举个例句好吗？谢谢 再答： 10 women Entrepreneurs Show How It Is Done. http://www.dailyblogtips.com/interview-9-women-entrepreneurs-show-how-it-is-done/ What is a decibel, and how is it measured? http://www.howstuffworks.com/question124.htm
