房貸市場(chǎng)的問(wèn)題,拖垮了不少貸款銀行。有人認(rèn)為, "Bailing out the banks is a necessary evil," 挽救這些銀行雖然不對(duì),但卻是必須要做的。國(guó)際石油價(jià)格高漲的今天, "Americans who drive big cars think oil is a necessary evil," 開(kāi)大車(chē)的美國(guó)人認(rèn)為,汽油雖然昂貴,但又離不開(kāi)它。好的,今天我們學(xué)習(xí)的詞是necessary evil...