assumption

在没有有力证据的情况下，挑战这一基本假设是危险的。

It's dangerous to challenge this fundamental ___assumption without strong evidence.

这些计算基于价格将继续上涨的假设。

These calculations are based on the ___assumption that prices will continue to rise.

这份预算预测是基于经济将保持稳定的假设。

The budget forecast is based on the ___assumption that the economy will remain stable.