A general secretary is like a boss of a really big club, but instead of just playing games and having fun, they help run an important organization called a "political party" or a "union". They work with the other members of the organization to make important decisions about what the group should do and how they should do it.
This means they help figure out what the group wants to achieve, how they will do it, and who will be in charge of different parts of the plan. The general secretary is like the captain of a ship - they make sure everyone is working together and that everything is running smoothly.
The general secretary also talks to important people outside of the organization, like politicians and other leaders, and represents the organization to the rest of the world. They help share the group's message and ideas with others, and work to gain support for their cause.
Overall, the general secretary helps lead an important group of people and works to make sure everyone is working together towards a common goal.