在舰船上，级别最低的副舰长也位列级别最高的轮机官之上。The most junior executive officer outranked the senior engineer officer aboard ship.舰长统率舰上的全体官兵.The captain of a ship commands all the officers and men.海军上将在欢迎他的哨子声中登舰.The admiral was piped abo...
To keep ecology in balance is our duty.保持生态平衡是我们的职责.Development has been guided by a concern for the ecology of the area.该地区的发展以注重生态为指导原则。We are reproducing ourselves at such a rate that our numbers threaten the ecology ...