/tə hæv ˈriːzənəbl graʊndz fɔr səˈpoʊzɪŋ/ – Phrase
Definition: có cơ sở thích đáng để cho rằng.
A more thorough explanation: “To have reasonable grounds for supposing” means to possess sufficient facts, evidence, or information that would lead a reasonable person to believe or suspect that something is true or likely to be true.
Example: The police officer had reasonable grounds for supposing that the suspect was involved in the crime based on the evidence found at the scene.