phenomenon
Definition
A fact or situation that is observed to occur, especially one whose cause is in question; something remarkable.
中文 观察到发生的事实或情况，特别是其原因成疑的情况；值得注意的事物。
Example
"The northern lights are a natural phenomenon."
A fact or situation that is observed to occur, especially one whose cause is in question; something remarkable.
中文 观察到发生的事实或情况，特别是其原因成疑的情况；值得注意的事物。
"The northern lights are a natural phenomenon."