In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。More normal auroral rings had been previously imaged around Saturn.更多正常的土星环行极光被拍摄到.When the bell rings, more than 1,000 children spill from classro...
He was an expert at finding his way, even in strange surroundings...他是认路的行家，即使在陌生的环境中也是如此。The bazaar was a kaleidoscope of strange sights and impressions.集市的景象光怪陆离,纷然杂陈.Clara moved her lips to recall remarks introductory...