It is our firm conviction that a step forward has been taken.

问题描述:

It is our firm conviction that a step forward has been taken.
这一句看不懂.

意思:
我们坚信,前进的步伐已经迈出.(或者:我们已经向前迈出了一步.)
形式主语是it,真正主语是that从句.
把真正主语调到开头,成为:That a step forward has been taken is our firm conviction.