sunspot cycle造句怎么写

Changes to the sunspot cycle will have an impact on our weather and climate — but not a very big one.

Conditions on the 15 and 10 meter novice band are slowly improving these days, although the current sunspot cycle 23 is now slowly diminishing

Changes to the sunspot cycle will have an impact on our weather and climate — but not a very big one. David Biello reports.