The word lengthy will not be used for describing an effective elevator pitch. It refers to expressing a business idea in the most efficient way within a short time and catching the attention of the audience.
Elevator pitch is a term used to describe a short term that expresses an idea for a product, service, or project.
The word comes from the idea that a speech should be delivered in a short lifetime.
Thus, The word Lengthy cannot be used for describing an effective elevator pitch.
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