"Proms are a $4 billion-a-year industry, but that figure could drop as much as one fifth this year because of the sagging economy," 高中畢業(yè)舞會每年總消費高達(dá)40億美元,但是由于經(jīng)濟(jì)不景氣,今年可能會下跌五分之一。"But for many high school seniors, the prom is a once-in-a-lifetime event, so it doesn't make sense to cut costs," 但是很多高中畢業(yè)生認(rèn)為,畢業(yè)舞會一輩子就這么一回,所以不應(yīng)該能省就省。好的,今天我們學(xué)習(xí)的詞是prom...