Their much vaunted reforms did not materialize.

他们大肆吹嘘的改革并没有实现。

《牛津词典》

Our plans did not materialize.

我们的计画未能实现。

youdao

This threat may or may not materialize.

这个威胁可能或不可能实现。

youdao

Risk is the probability that some or all of these future cash flows will not materialize.

FORBES: A Second Look at P/E Ratios

If such a sale does not materialize, the rating would likely be downgraded into the "Baa" category, from A2.

FORBES: Magazine Article

The overall macroeconomic environment is weak and the Christmas build season did not materialize as expected during the quarter.

FORBES: Microchip Sees Soft Dec Qtr On Weak Macro Conditions