Something for nothing 最好怎样理解?

Something for nothing 最好怎样理解? Something for nothing look something for nothing是什么意思? Lve for nothing, or die for something! promise something for nothing啥意思 of something for nothing怎么解释? 请问something for nothing什么意思 give something for nothing怎么译? something anything everything nothing怎样区分使用 he is always looking for something for nothing. 怎样理解Is this the only way for students to learn something? Nothing but is good for something什么意思啊