Sentence examples for its origin remains from inspiring English sources
Its origin remains one of the great mysteries of slang.
The phrase "grin like a Cheshire cat" predates Carroll's story, and, although experts have guessed at its meaning, its origin remains mysterious.
Its origin remains unknown.
However, its origin remains arguable.
Yet its origin remains a subject of debate.
While flow-induced voltage over a graphene layer has been reported, its origin remains unclear.
Although it is believed to have originated in camels, its exact origin remains a mystery.
Its physical origin remains elusive, but it is linked to precursor structures for crystallization.
"But its deep origin remains unclear," says Dr Hejnol.
He is often quoted with "Let food be your medicine, and medicine be your food" and "Walking is man's best medicine", however the quote "Let food be your medicine" is an apparent misquotation and its exact origin remains unknown.
A prototypical instance is that of the pulsatile secretion pattern of GnRH (gonadotropin releasing hormone), the master hormone controlling the reproductive function, whose origin remains a puzzle issue since its discovery in the seventies.
