多吃什么对身体有好处:how can we change our fortune ?

how can we change our fortune ? how can we..... how can i change my username? How can we have more friends How can we have more friends? “HOW can we help you?”是什么意思？ how can we become an interpretor or a translator? Can we measure entropy directly,how and why? 英语写作：How can we keep our shool clean? how high we can kiss the sky 是什么意思啊