相关单词同义词emergence, going on, event, discovery, appearance, circumstance, scene, 近义词 happening, event临近词ocean, occur, occurrences, occurrence law, occurrencearea, occurrence net, occurrence mode, Occurrence site, occurrence time, Occurrence type, occurrence area, Occurrence date相似词occupier, occupy, occur, occur to sb, ocean, ocean-going, Oceania, oceanic, 返回 occurrence