Question

Children know a lot ... Mickey Mouse.

Answer 1

Children know a lot  about Mickey Mouse

Answer 2

I can answer your question in Russian. Children know a lot about Mickey Mouse because he is a famous cartoon character and the mascot of The Walt Disney Company. He was created by Walt Disney and Ub Iwerks in 1928 and appeared in many animated films, comic strips, television shows, video games, and merchandise. Mickey Mouse is an anthropomorphic mouse who usually wears red shorts, large yellow shoes, and white gloves. He has a girlfriend named Minnie Mouse, a pet dog named Pluto, and two best friends named Donald Duck and Goofy. He also has many relatives, such as his nephews Morty and Ferdie, his cousin Madeline, and his half-brother Oswald the Lucky Rabbit. Mickey Mouse is one of the world's most recognizable characters and has a star on the Hollywood Walk of Fame. He is also part of the Mickey Mouse universe, a fictional shared universe that includes many other Disney characters related to him.

: Mickey Mouse family | Disney Wiki | Fandom : Mickey Mouse Facts for Kids : Mickey Mouse universe - Wikipedia