How to pronounce natural:
Example: "A very natural development"
Example: "A natural pearl"
Example: "A perfectly natural explanation"
Example: "A natural scale"
Example: "Biological child"
Example: "He's a natural for the job"
Example: "It's the natural thing to happen"
Example: "A cat's natural aversion to water"
Example: "Natural yogurt"
Naturally; in a natural manner.