白垩纪尚无壳斗科可靠的大化石记录,微化石需要进一步研究才能确定亲缘关系以及古新世壳斗科已经分化出两个类群. No creditable macrofossil record of the Fagaceae exists in the Cretaceous equivocal and require further study.
President Conte, a diabetic and chain smoker, had been ill for several years.Conte总统, 糖尿病患者并有严重的烟瘾, 已患病多年.After twenty years as a chain smoker Mr Nathe has given up the habit.当了20年的烟鬼后，纳特先生戒了烟。an inveterate smoker烟瘾很大的人H...
Many farms are jumping on the bandwagon and advertising organically grown food...很多农场正赶潮流宣传有机食品。...the environmental bandwagon.环保热潮In recent months many conservative politicians have jumped on the anti-immigrant bandwago...
鲟鱼和长嘴鱼都是硬鳞鱼.Sturgeons and gars are ganoid.硬鳞鱼在更早的地质时期数量巨大.Ganoid fishes swarmed during the earlier geological periods.陆龟的背甲高而呈圆盖形;后肢粗大, 形如象腿;前肢覆以硬鳞.Tortoises have a high, domed shell, heavy elephant - like hind legs, and...