The nature of the polymer is currently a trade secret.这一聚合物的性质目前是个商业机密。They issue a fixed number of shares that trade publicly.他们发行一定数量的可公开交易的股票。Anita Loos was in many respects untypical of the screenwriting trade.在许多方面，...
歌声缭绕在人群上方，如同低声祝福。The song hovered, like a whispered benediction, above the crowd.一缕盘旋的轻烟从农舍唯一的烟囱里缭绕升起。A thin twist of smoke curled from the cottage's single chimney.屋内香烟的烟雾缭绕.Inside, clouds of cigarette smoke swirle...