They walked through the arch and into the cobbled courtyard.他们穿过拱门走进铺着鹅卵石的院子。Cottrell strode out across the cobbled courtyard.科特雷尔穿过铺着鹅卵石的院子大步走出来。Sunlight was streaming into the courtyard.阳光照到院子里。...
There are four major disciplines in earth sciences, namely geography, geology, geophysics and geodesy.地球学又分为四大类, 即地理学, 地质学, 地球物理学和测地学.Physics and astronomy are cognate sciences.物理学与天文学是互有关联的科学.Most seem to come from tech...