self-powered adj. 自己供電的；自動(dòng)推進(jìn)的

eg:A self-sufficient guy? Well, it would be more accurate to say that I'm a self-powered guy.
自給自足的家伙？呵呵，準(zhǔn)確說(shuō)來(lái)應(yīng)該是自己能發(fā)電的家伙。

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