Can you put streamline in a sentence with this definition:a teardrop line of contour offering the least possible resistance to a current of air, water, etc.
Certainly! Here's a sentence using the definition of "streamline":
To reduce drag and increase aerodynamic efficiency, race cars are designed with a sleek and streamlined body shape resembling a teardrop contour to minimize resistance to the airflow.
To arrive at this sentence, I first understood the definition of "streamline" as "a teardrop line of contour offering the least possible resistance to a current of air, water, etc." By understanding this definition, I was able to imagine a situation where the concept of "streamline" would be applicable, which in this case is a race car designed to reduce drag. Finally, I crafted a sentence that conveys this meaning.