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- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- I don't get it. How do migrating swallows know their way to Africa? 我不明白，定期移栖的燕子是怎么辨认它们去非洲的路的？
- 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 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
- Living in fresh water but migrating to marine waters to breed. Used of fish. 因产卵顺流入海的在淡水中生活但移到海水中产卵繁殖的。用于鱼类
- 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
- migrating layer 迁移层
- 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 act or an instance of migrating. 迁移，移居迁移的行为或实例
- Many Asians are migrating to the West. 许多亚洲人移民去了西方国家。
- Migrating birds have marvelous directional sense. 候鸟有非凡的方向辨别 力.
- They are talking about migrating abroad. 他正在谈论移居国外的事.
- He is talking about migrating abroad. 他正在谈论移居国外的事.
- Are the glitterati migrating to Brooklyn? |-名人纷纷涌到布鲁克林区？
- 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
