sporadic的音标：sporadic的英式发音音标为：[spə'rædɪk]sporadic的美式发音音标为：[spə'rædɪk, spɔ-]...

adj.不定时发生的，时有时无的，零星的，分散的，哩哩啦啦...

There were reports of sporadic fighting in the streets.有报道说街上有零星战斗.The area has been the scene of sporadic artillery duels over the last six weeks.在过去的6周中，该地区曾经发生过零星的炮击。In its common'sporadic " form, Creutzfeldt -- ...

Medullary carcinomas can be sporadic or familial.髓样癌可以是散在单发,也可以是家族性发病.Most of the smaller hornblendite bodies contain about 5 - 10 percent magnetite, with only local sporadic enrichment.在小的角闪岩体中,磁铁矿可占510%, 仅有局部的散染状富集.Sud...