circulation
复数形式
circulations
1
循环
the flow and movement of blood around and in all parts of the body
Circulation refers to the continuous movement of blood throughout the cardiovascular system. It is driven by the rhythmic contractions of the heart and facilitated by a network of blood vessels, including arteries, veins, and capillaries. Circulation ensures the delivery of oxygen, nutrients, hormones, and other vital substances to all tissues and organs while removing waste products and carbon dioxide. It plays a vital role in maintaining cellular function, supporting organ systems, regulating body temperature, and facilitating the immune response. Proper circulation is essential for overall health and well-being.
- Regular exercise improves blood circulation throughout the body.
定期锻炼可以改善全身的血液循环。
- She felt lightheaded due to poor circulation in her legs.
由于腿部血液循环不良，她感到头晕。
- Cold weather can slow down circulation and make extremities feel numb.
寒冷的天气会减慢血液循环，使四肢感到麻木。
- Good circulation is essential for maintaining overall cardiovascular health.
良好的血液循环对于维持整体心血管健康至关重要。
- The doctor checked his circulation to ensure there were no issues with blood flow.
医生检查了他的循环以确保血流没有问题。
2
发行量, 流通量
the total number of copies of a newspaper or magazine distributed, including both sales and delivery to readers
Circulation refers to the number of copies of a newspaper, magazine, or other periodical that are distributed to readers, either through subscriptions or sales. It is a key measure of the reach and popularity of a publication. A higher circulation indicates that more people are reading the publication, which can make it more attractive to advertisers. Circulation can be broken down into different types, such as paid circulation, where readers pay for a subscription or single copy, and controlled circulation, where copies are distributed for free to a targeted audience.
- The magazine has a circulation of 200,000.
该杂志的发行量为20万册。
- Newspaper circulation has dropped in recent years.
报纸的发行量近年来有所下降。
- That journal has the widest circulation among scientists.
那本期刊在科学家中拥有最广泛的发行量。
- A reliable circulation network ensures timely delivery.
可靠的流通网络确保及时交付。
- A higher circulation attracts more advertisers.
更高的发行量会吸引更多广告商。
3
流通, 传播
the process by which something such as money, information, or rumors spreads among people or within a system
- The circulation of counterfeit bills worried the bank.
假钞的流通让银行感到担忧。
- Fast circulation of news is common online.
新闻的快速流通在网上很常见。
- Rumor circulation damaged his reputation.
谣言的传播损害了他的声誉。
- Digital media increased the circulation of information.
数字媒体增加了信息的流通。
- The circulation of petitions grew quickly on social networks.
请愿书的流通在社交网络上迅速增长。
4
循环, 流动
the movement of a substance within an organism or system, such as sap in plants or cytoplasm in a cell
- The circulation of sap keeps the tree nourished.
循环使树液保持树木的营养。
- Cell biologists studied the circulation of cytoplasm.
细胞生物学家研究了细胞质的循环。
- Warm water helps the circulation of nutrients in plants.
温水有助于植物中营养物质的循环。
- The experiment showed poor circulation inside the tissue.
实验显示组织内部循环不良。
- Oxygen enters through the circulation in aquatic plants.
氧气通过循环进入水生植物。
5
借阅, 流通
(in libraries) the measure of how many books are borrowed over a certain period
- The library reported a rise in book circulation.
- Children's books have the highest circulation.
儿童书籍的流通量最高。
- Staff monitor monthly circulation trends.
工作人员监控每月的流通趋势。
- Textbooks showed steady circulation during exams.
教科书在考试期间显示出稳定的流通。
- Summer programs increased overall circulation.
暑期项目增加了整体流通量。