One quadrant of a circle contains all possible values of Zxy.圆的四分之一包括了所在可能的Zxy值.The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.这个分子包含四个呈环状排列的碳原子，每两个碳原子之间形成一个三价键。Conclusi...
Our bone marrow contains fat in the form of small globules.我们的骨髓中含有小球状的脂肪。Decaffeinated coffee still contains some stimulants and other nasties linked with cancer.脱咖啡因的咖啡仍含一些刺激物和其他可能致癌的有害物质。The guide book contains a shor...