Sentence examples for a first explanation is from inspiring English sources

A first explanation is the typical very high CNR values of DSL copper wires.

A first explanation is that richer people may already be taking precautions against air pollution and, therefore, be less willing to contribute to a public good.

A first explanation is that our patients represent a homogeneous population of patients with morbid obesity.

A first explanation is that crystal cells attach to sessile plasmatocytes to adhere to the sessile compartment.

A first explanation is that in some studies the measuring of the PCR was poor: some studies used validated questionnaires, while other studies used ad hoc questions.

A second explanation is the old political-bureaucratic imperative.

A second explanation is more relevant to the work onstage.

A second explanation is that Islam bans usury.

A second explanation is that "Caritas in Veritate" is the work of many hands.

But a third explanation is that the strongest teams simply got lucky.

A third explanation is that Mr. Hayami is on a personal mission to force a restructuring of the Japanese corporate and financial structure.