您要查找的是不是：
- Pound notes have been withdrawn from circulation. 一英镑面值的钞票已停止流通。
- Harvey discovered the circulation of the blood. 哈唯发现了血液循环。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- We observed the circulation of blood in frogs. 我们观察了青蛙的血液循环。
- The old coins have been withdrawn from circulation. 旧硬币已经收回不再流通了。
- Many forged notes are in circulation. 许多假钞在流通。
- This magazine has a large circulation. 这本杂志发行量很大。
- These ideas have been in circulation for some time. 这些想法已经流行了一段时间。
- 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。
- After a month in hospital, she is back in circulation. 住了一个月的医院后，她又重新活跃起来了。
- Police say a number of forged banknotes is in circulation. 警方称市面上有一定数量的伪钞。
- 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
- The newspaper's circulation has trebled since last year. 去年以来该报的发行量已增加到原来的三倍。
- 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
- I've been out of circulation in order to prepare for the TOEFL. 为了准备托福考试,我已经不从事社交活动。
