背中の

of the back

→ 背中
phrase Rare #36,136
of the back Connects “back” to a following noun, as in “the back of a jacket” or “back pain.”
JA: 背中の痛みがひどい。
EN: The pain in my back is severe.

ラクダは背中のこぶに大量の水をためることができる。

Camels can store a large amount of water in the humps on their backs.

彼は背中のマッサージを頼んだ。

He asked for a back massage.

ラクダは背中のこぶに大量の脂肪をためることができる。

Camels can store a large amount of fat in the humps on their backs.

この上着は背中のところが少しきつい。

This jacket is a little tight across the back.