您要查找的是不是：
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The shark's dorsal fin was cut off by the fisherman. 鲨鱼的背鳍被渔夫割了下来。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
- The analogous dorsal region in other animals. 动物的背部其它动物相似的背部部位
- dorsal layer 背射层
- Dorsal nucleus of glossopharyngeal n. 舌咽神经背核。
- A thin, flat layer or scale, as that of a fish. 外表组织薄而平的一层或鳞状物，如鱼鳞
- The shark's dorsal fin was cut offby the fisherman. 鲨鱼的背鳍被渔夫割了下来。
- Starting at the base of the first dorsal spines. 一条始于第一背脊骨基部。
- Flattened along the dorsal and ventral surfaces. 匍匐的沿着背部和。
- No details from the dorsal view are evident. 显然背面景像没有详细的细节。
- The dorsal telencephalon is the anlage of pallium. 端脑背侧是大脑皮质发生的原基，大脑皮质可分为三部分：即中间脑皮质、背侧脑皮质和侧脑皮质。
- Having a cortex or a similar specialized outer layer. 有皮的有皮的或具有相似的专门发育的外部覆盖的
