clandestine activities or organizations are secret 祕密的﹐暗中從事的
a clandestine affair 祕密事務
happening often but not regularly; INTERMITTENT 偶爾發生的﹐零星的﹐分散的
sporadic fighting in the west of the city 城西的零星戰鬥
11. With a rather limited collection of ..-阿摩線上測驗