Jupiter is the giant among the planets in the Solar System. All the others
could fit into it with room to spare, and it could swallow more than 1,000
bodies the size of Earth. Made up mainly of hydrogen, Jupiter is a gassy
planet with a stormy atmosphere full of clouds......（以下略）
略譯：木星在太陽系中的行星裡是個巨大的星球。 它可以容納其他星球還能剩下空間。
請教這邊的fit into是什麼意思呢？
謝謝回答。