cyclic/ˈsaɪklɪk; `saɪklɪk/ (also cyclical/ ˈsaɪklɪkl;`saɪklɪkl/) adj recurring in cycles; regularly repeated 循环的; 有规律地重复的 the cyclical nature of economic activity 经济活动的周期性质.
牛津英汉双解词典