- 偶発｛ぐうはつ｝（事件｛じけん｝）
- accidental: accidental不慮ふりょ偶発的ぐうはつてき偶発ぐうはつ不測ふそく不期ふき
- accidental...: accidental...異質― (火山)[地球]; 偶発的[電情]
- occurrence: occurrence n. 起こること, 発生; 事件, 出来事.【動詞＋】It is difficult to know what causes any particular occurrence of cancer.何が特定のがんの発生の原因となるのか知るのは難しいWe've had several such occurrences recently.最近何度かこんな出来事が生じているpr
