sporadic case

　
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  • 散發(fā)病例

sporadic case的用法和樣例：

例句

  1. Its prevalence and sporadic cases often happened in Asia-Pacific area.
    乙腦的流行和散發(fā)病例多發(fā)生在亞太地區。
  2. Though polio has practically been wiped out, there have been sporadic cases of the disease.
    小兒麻痹癥雖然實(shí)際上已被消滅，但一直有散發(fā)病例出現。
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