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- This layer of rock contains a lot of flint. 這一巖層中有大量燧石。
- The inner layer of the wall of a spore. 孢子內壁孢子壁的內層
- There is a fine layer of dust on the desk. 桌子上有一層薄薄的塵土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中間通常含肉較多的那一層
- The bottom layer is a mixture of sand and clay. 最下面的一層是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的東西都蓋了一層薄薄的灰塵。
- A layer, as of doubled-over cloth or of paperboard. 一層一層，如折疊過(guò)的布料或紙板的
- A surface, layer, or mass of frozen water. 冰面凍結的水的面、層或塊
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它組織的薄層
- A thin, flat layer or scale, as that of a fish. 外表組織薄而平的一層或鱗狀物，如魚(yú)鱗
- Having a cortex or a similar specialized outer layer. 有皮的有皮的或具有相似的專(zhuān)門(mén)發(fā)育的外部覆蓋的
- A coat or layer enveloping an organ or a part. 被膜一種覆蓋器官或身體部位的覆蓋層或包被
- A layer of skin peeled off her sun-burnt back. 她曬黑的背上掉了一層皮。
- The pollution had destroyed ozone layer and caused many changes in weather. 污染破壞了臭氧層，并引起了許多天氣變化。
- The layer spindle was an early development. 層式紡錘形是早期發(fā)展起來(lái)的。
- The altitude of the lowest layer of clouds. 云幕高度最低層云的海拔高度
- This cake has a layer of chocolate in the middle. 這蛋糕中間有一層巧克力。
- The grind is covered in a pristine layer of snow. 地上覆蓋著(zhù)一層皚皚積雪。
- This seam of coal reposes on a layer of clay. 這個(gè)煤層處于一層黏土巖之上。
- A layer of mortar upon which stones or bricks are laid. 灰漿層一層鋪放石頭或磚的砂漿層
