Great changes have taken place since he left.

自从他离开以后这里发生了巨大的变化。

youdao

Great changes have taken place here since he left.

自从他离开以来这里发生了巨大变化。

youdao

Great changes have taken place here since he left.

自从他离开以来这里发生了巨大变化。

youdao