在这些化合物里, 环戊二烯环只有4个氢.In there compounds, the cyclopentadiene ring has only four hydrogens.聚二烯基本分子结构是一良好的燃烧剂.The polydiene basic molecular structure is an excellent fuel.所加的反应物可以是二烯烃 、 环二烯烃.The feed reactants can be alkadi...
The more fiefs Your Lords have the larger army they can have.更封地您上议院有较大的军队,他们可以拥有.Ms Rodin decided that the separate fiefs had to go.罗丁决心消除这种各自为政的状态.According to legend, Wuqiao is Sun Wu future generations fiefs.相传, 吴桥是孙...
He wiped his forehead with a blue bandanna and smiled again.他用一条蓝色的大手帕擦擦前额,又笑了笑.The policeman smiled at her. "Pretty dog."— "Oh well, thank you."警察冲她笑了笑，“这狗真漂亮。”——“哦，谢谢。”He didn't speak much, he just smiled with tha...