从很早开始，自古以来
for a very long time
Her family had farmed that land since time immemorial. 她的家族从很早开始便在那块土地上耕耘了。
These are questions that have intrigued philosophers from time immemorial.
It was the sort of speech head teachers have delivered to their students since time immemorial.
Global warming is changing the way polar bears have lived since time immemorial.
He scratched his initials into the wall, as prisoners have done from time immemorial.
Since time immemorial, humanity has questioned the possible existence of supernatural beings.
See also: immemorial