Mathematics was once dubbed the handmaiden of the sciences.

数学曾一度被视为各门科学的基础。

《牛津词典》

Laos, once dubbed "the land of a million elephants", may have only 1,000 left.

而在曾经被称作“百万大象”的老挝，可能仅剩1000头了。

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Laos, once dubbed “the land of a million elephants”, may have only 1, 000 left.

老挝曾号称“万象之国”，现在也许只剩下1000头了。

youdao

Sabriya lives on what was once dubbed "murder street" for the daily killings that happened there last year.

CNN: Iraqi: 'I killed her with a machine gun'

The Wandle, once dubbed a "sewer" because of waste from tanneries flowing into it during the industrial revolution, was cleaned up by environmentalists.

BBC: NEWS | UK | England | London | Toxic spill in river kills fish

Once dubbed 'a unique BBC product' On The Wire has been produced and presented by Steve Barker for the past quarter of a century.

BBC: Lancashire - On the Wire celebrates 25 years