Definition
Remarkable or unusual, often because it is exceptionally good or bad.
不尋常，很特別（好或壞）
Her piano performance was really something else; it was extraordinary.
她的鋼琴演奏真的很不一般；非常出色。
The service at this restaurant was something else; it was incredibly bad.
這家餐廳的服務真是不一般；非常糟糕。
I have never seen such a large diamond; it's really something else.
我從未見過這麼大的鑽石；它真的很不一般。