Question

あいりすおーーーーーやま

わかりにくいのですが2段落目の上から4行目の、there can be different shapes which are not always flat
の訳し方ですが、様々な形になれるものがある？と思い、それで関係代名詞だと思ったので形は形でも平面とは限らないと言う事ですか？語彙力なくて申し訳ないです

Jigsaw Puzzles*
sold
(27
The first jigsaw puzzle was made by a British man named John Spilsbi、
wem nak ede
SO
became popular among children in England.
Until the 20th century, most jigsaw puzzles were made of wood,
were expensive. Today, jigsaw puzzles are usually made of hard paper and in
many different sizes. Some are as small as a postcard and others are almost as
they
Dg as a large room. Also, there can be different shapes which are not always
Tlat*. These days, people can get puzzles that become objects such as cars or
Ships. There are even some jigsaw puzzles that you cannot touch. They are on
the Internet. You use your mouse* to move the pieces to make a picture.
もの
Doing jigsaw puzzles is now a common hobby around the world, but
people enjoy these puzzles in different ways. In some countries, people like to
do the same jigsaw puzzles again and again. But some people in Japan are
interested in doing jigsaw puizzles just once. They put them in picture frames
and enjoy looking at them.
*jigsaw puzzle :ジグソーパズル
*jigsaw:糸のこぎり
* flat: 平らな
いと
たい
mouse:(コンピューターの) マウス