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...
The new diner needs another short - order cook.新来的客人又要了一份快餐.When asked what a £40.35 meal for five people would cost each diner, they were unable to work it out.问到5个人吃一顿饭花了40.35英镑，每人要出多少钱时，他们算不出来。Go and wash those paws b...
Nutrients pass through the funicle to the ovule and seed.营养物质通过珠柄传递到胚珠和种子.Funicle ( funiculus ) The stalk attaching the ovule ( later the seed ) to the placenta angiosperm ovaries.中连接胚珠 ( 之后的种子 ) 和胎座的柄.Funicle ( funiculu...