This is the 2574th most frequent Chinese word.
续
"续" means "to continue" or "to extend."
Here, 续 means 'refill or continue with' and is used in the context of replenishing something like a drink.
请续杯茶水。
Please refill the teacup.
In this sentence, 续 means 'to continue' and is used to denote the action of carrying on with something, like a story.
故事还没有讲续。
The story hasn't been continued yet.
Here, 续 is used to imply continuation in the form of creating something that follows on, such as a sequel to a book.