The weather is wet this year.

This is because there is cold air crossing the border and merging with the warm air before, forming a large range of water vapor, resulting in high relative humidity. It is also the reason why winter is colder than in previous years. Is it foggy in Guangzhou this year? When cold air passes through the border, it will also form a big and long foggy day, that is, advection fog.

! ! ! This year is wetter than in previous years because the weather was warmer before, and then cold air and warm air merged, but the air conditions at this time of last year did not meet this standard, so it will be wetter than in previous years.

Does it have to be said that there is a big weather change or a precursor to a certain phenomenon before the landlord will express his approval and satisfaction?