/fəˈnɒmɪnən; US -nɒn ||; fəˈnɑməˌnɑn/noun
[C] (pluralphenomena /-ɪnə ||; -ənə/) a fact or an event in nature or society, especially one that is not fully understood 现象:
Acid rain is not a natural phenomenon. It is caused by pollution.酸雨不是自然现象,而是由污染造成的。
phenomenon/fIˋnɑmə͵nɑn; fIˈnɒmənən or fIˈnɒmInən/n [C] plural phenomena /-nə; -nə/something that happens or exists, especially something that is unusual or difficult to understand〔尤指不寻常或难懂的〕现象: +of The phenomenon of laughter is unknown in animals. 动物是没有笑这种现象的。social/natural/cultural etc phenomenon earthquakes and other natural phenomena 地震及其他自然现象