循环: 1. loop2. circleRelative explainations: Examples:1. 血液在体内循环。 Blood circulates through the body.2. 四季循环交替。 The seasons follow each other in rotation.3. 哈唯发现了血液循环。 Harvey discovered the circulation of the blood.4. 我得有经验才能找到工作, 可是没有工作我就无法获得经验--这真是个恶性循环. I need experience to get a job but without a job I can't get experience it's a vicious circle.5. 循环小数‘3.999...’亦作‘3.9循环’. The recurring decimal 3.999... is also described as 3.9 recurring.6. 血液在体内循环. Blood circulates through the body. 血液循环the circulation of blood全身循环systemic circulation循环操作法cycle operation循环泵circulating pump循环矩阵circulant matrix热力循环a thermodynamic cycle循环理论a circular theory.循环次序a circular order胫腓循环tibiofibular articulation.时间的循环the round of the hours
