为啥下面这个题用work out?

为啥下面这个题用work out? 为啥这里用carried out? 下面一句中,work是作为名词讲的,但是为啥用一个previously副词修饰? work out outline 这个词组什么意思 ? work out 算出他们,英文翻译,用work out 用“work out"造一个英语句子 work out fine 和work out well work work it out呢? 这个英语句子为啥这么用 work at、work out、work on区别... put out,take out,give out,keep out,work out