太阳系最大的行星是哪颗？

Which is the largest planet in the solar system?

The largest planet in the solar system is Jupiter. Its atmosphere is similar to that of the Sun （mostly hydrogen and helium）. The Red Spot, a gigantic storm, has been visible for at least 300 years. Jupiter has a strong magnetic field, much stronger than the Earth’s. It has more than 50 moons.