常見(jiàn)例句用作形容詞 (adj.)This is unsustainable in the long run.從長(zhǎng)期來(lái)看，這是不可持續(xù)的。The present level of the dollar is widely judged to be unsustainable.人們普遍認(rèn)爲(wèi)，美元無(wú)法維持儅前的水平。 返回 unsustainable