phenomenon
US /fəˈnɑː.mə.nɑːn/
UK /fəˈnɑː.mə.nɑːn/

1.
现象
a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question
:
•
The aurora borealis is a beautiful natural phenomenon.
北极光是一种美丽的自然现象。
•
The rapid growth of social media is a recent phenomenon.
社交媒体的快速发展是一种新近的现象。