他表演了一套惊人的杂技功夫。He performed a sensational acrobatic feat.走钢丝杂技acrobatics on the high wire我总是着迷于马戏团里的杂技演员.I was always fascinated by the acrobats at the circus....
Whether autochthonous or allochthonous, may be important in the total metabolic system of lakes and streams.无论是自源的或他源的, 在湖泊与河流的总代谢系统中都可能是重要的.Autochthonous or allochthonous, may be important in the total metabolic system ...