occurrenceKK [əˋkɝəns] /əˈkɝəns/發音名詞1事件、事情Power outages are a common occurrence in this old building.停電在這棟老建築裡是很常見的事。2發生、出現The new safety rules aim to prevent the occurrence of such accidents.新的安全規定旨在防止這類事故發生。3出現次數、出現頻率The software counts the occurrences of each word in the text.這個軟體會統計文本中每個字詞出現的次數。