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 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
- Note the polarity of the voltage drop across R. 注意R上电压降的极性。
- Some people vocalize the “r” in four. 有些人把 “four” 中的“r”发成元音。
- 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
- Don't harbo(u)r unkind thoughts. 别心怀叵测。
- Tick the box marked"r" if you require a receipt. 如果您要求开收据，请在标有R的方格中打个记号。
- Oysters are only in season in the "r" months. 牡蛎的季节在含有r字的月份。
- Oysters are only in season in the 'r' months. 牡蛎的季节在含有 r 字的月份。
- Schopper -Riegler freeness tester S. R. 游离度测定仪。
- 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
- The beam bends to a circular profile of radius R. 梁弯曲成半径为R的园形形状。
- Q come between p and r in the english alphabet. 在英语字母表中，Q位于P与R之间。
