The immaculately tended gardens are an oasis in the midst of Cairo's urban sprawl.在开罗不断扩张的都市版图内，这些被悉心照料的花园成了一片世外桃源。Agreement in Cairo should be topped by an end to the oil embargo in Riyadh.继在开罗达成了协议之后,应当在利雅得设法结束石油禁...
The distinction between geophysical and geological branches of earth science is not clear - cut.地质和地球物理这两个地球科学分支的差别并不泾渭分明.The method has proved more and more to be of very great geophysical significance.这个方法在地球物理学上的重要性越来...