You would be making an assumption that's not based on any fact that you could report.

你会做出不以任何可报道的事实为依据的假设。

Dr Subroto questioned the scientific assumption on which the global warming theory is based.

苏博托博士对全球变暖理论背后的科学假说提出了疑问。

Economists are working on the assumption of an interest rate cut.

经济学家们正在研究降低利率的假设。