magnitude

他低估了这次会议的重要性。

He underestimated the ___magnitude of this meeting.

这颗恒星的亮度等级为3等。

The star has a ___magnitude of 3 on the brightness scale.

这场飓风的破坏力之大超乎所有人预料。

The ___magnitude of the hurricane's destruction was beyond everyone's expectations.