According to the forecast of the China Meteorological Administration, China's climate conditions in August are still deviating, with thunderstorms in North China and Northeast China.

Since the beginning of summer, with the increase of heavy rainfall, words such as "rainfall", "recurrence period" and "strong convection" often appear in the news. What do they mean?

In today’s Million Village Classroom, Zhang Tao, chief forecaster of the Central Meteorological Observatory, was invited to answer your questions.

(Reporting by Dong Zeyu in Beijing)

Editor in charge: [Wang Kai]