1、maintain
維持;保持
The Department maintains many close contacts with the chemical industry.
這個部門與化工行業保持著眾多密切的聯系
。Push yourself to make friends and to maintain the friendships.
要求自己與人交友并保持友誼
。斷言;宣稱;堅稱
He has maintained that the money was donated for international purposes.
他堅稱這筆捐款將用于國際用途
。Prosecutors maintain no deal was made.
原告堅持說不存在任何交易
。保持,維持(在某一比率或水平上)
The government was right to maintain interest rates at a high level.
政府維持高利率的做法是正確的
。action is required to ensure standards are maintained at as high a level as possible.
要求采取行動確保標準維持在盡量高的水平上
。2、evolve
進化;演變
The bright plumage of many male birds has evolved to attract females.
很多雄鳥進化出鮮艷的羽毛是為了吸引雌鳥
。Maize evolved from a wild grass in Mexico.
玉米是從墨西哥的一種野生禾本植物進化而來的
。(使)逐步發展;(使)演化
a tiny airline which eventually evolved into Pakistan International Airlines.
最終發展成巴基斯坦國際航空公司的一家小型航空公司
Popular music evolved from folk songs.
流行音樂從民歌演變而來
。