我一听到任何消息就会给你打电话。

I'll call you ___the ___moment I hear anything.

我认为，从他们决定生火的那一刻起，这些差异就变得重要了。

I think these differences become relevant ___the ___moment that they decide to make a fire.

系统一检测到入侵，警报就会响起。

The alarm will sound ___the ___moment the system detects an intrusion.