常見例句雙語例句But the shift into travel spending, seen as a big-ticket discretionary item, is a sign perhaps of the next stage of the recovery.但旅遊支出作爲(wèi)大額非必需品消費(fèi)，可謂經(jīng)濟(jì)進(jìn)一步恢複的信號。 返回 discretionary item