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...
In most languages adjectives have slightly different spellings for masculine and feminine.在多数语言中，形容词的阳性和阴性的拼法略为不同。Crook liked her well enough, but remained indifferent to her feminine charms.克鲁格还比较喜欢她，只是对她的女性魅力却始终无动于衷。I ...
Now and then they heard the roar of a heavy truck.他们不时地听到大卡车的轰鸣声。A roar of approval resounded through the Ukrainian parliament.一片赞成声在乌克兰议会中回响。Local residents saw it plunge towards Earth with a deafening roar.当地的居民看见它伴着一声...