This history is unforgettable.

这段历史是不能忘记的。

youdao

The real pain is unforgettable, because it is your bones.

真正的痛苦是忘不了的，因为它是你的刻骨铭心。

youdao

Sincere friendship, our childhood, eternal life is unforgettable!

真挚的友谊，我们的童年，永生难忘！

youdao

Its modern Italian seafood is unforgettable, especially the sea urchin with lardo and the lobster with burrata cheese.

BBC: Business Trip: New York

The fantastic diversity of Queensland's Great Barrier Reef is legendary, and a diving or snorkelling trip out to the reef is unforgettable.

BBC: Watching Australia's wildlife

Whether you are an arty type or a party type, Miami is one unforgettable 24 hours.

BBC: A perfect day in Miami