sporadic

英 [spəˈrædɪk]

美 [spəˈrædɪk]

adj.  偶尔发生的; 间或出现的; 阵发性的; 断断续续的

TOEFLIELTSGRETEM8医学

Collins.1 / BNC.11284 / COCA.11539

牛津词典

adj.

• 偶尔发生的；间或出现的；阵发性的；断断续续的
  happening only occasionally or at intervals that are not regular
  1. sporadic fighting/gunfire/violence, etc.
     零星的战斗、一阵一阵的炮火、间或发生的暴力事件等
  2. sporadic outbreaks of the disease
     那种疾病的偶尔爆发

柯林斯词典

• ADJ-GRADED 间断发生的;零星的
  Sporadicoccurrences of something happen at irregular intervals.
  1. ...a year of sporadic fighting over northern France...
     法国北部发生零星战斗的一年
  2. The sound of sporadic shooting could still be heard.
     仍能听见零星的枪声。

英英释义

adj

• recurring in scattered and irregular or unpredictable instances
  1. a city subjected to sporadic bombing raids

双语例句

• Familial cases have been reported but most cases are sporadic.
  家族性的病例曾见报道，但大多数病例是散发的。
• Results the low echo may be either sporadic or diffuse.
  结果广泛低回声表现为散在性和弥漫性。
• Her attendance at school was sporadic.
  她三天两头旷课。
• Sporadic memories pictures, and remain some have lost love powder.
  零星的回忆画面中，残留某些已失的爱情粉末。
• Sporadic but sensational Taliban attacks continue in the north and in Kabul.
  塔利班继续在北部和喀布尔发动零星但骇人听闻的攻击。
• Objective To analyze the HEV genetic structure and nucleotide homology isolated from sporadic acute hepatitis E in Changchun.
  目的：分析一株长春地区散发戊型肝炎病毒（HEV）的基因结构和核苷酸同源性。
• Outbreaks and sporadic human infection with swine influenza have been occasionally reported.
  人感染猪流感病毒的暴发和散发病例时有报导。
• Further sporadic human cases can be anticipated.
  可以预期发生进一步散在性人间病例。
• In epidemiological terms, there is generally a background of sporadic cases, with occasional outbreaks.
  从流行病学的角度来看，偶然暴发一般存在有散在病例的背景。
• The sporadic outbreaks of the disease have worried the researchers.
  这种疾病的零星爆发令调查者们担心。