Some Australopithecus molars show no trace of microscopic cracks that hard foods should create.一些南方古猿的磨牙看不出坚硬的食物会留下的显微裂缝的痕迹.The elephant grinds its food with its powerful molars.象用其强有力的臼齿嚼碎食物。" Finest specimens of human ...
University campuses are often the bellwether of change.大学校园往往引领变革的新潮。Yet again we look to George Lucas as a bellwether.我们再一次以乔治·卢卡斯的马首是瞻.Intel Corp , for instance, hastraditionally been a bellwether for thesemiconductor ...