Definition (解剖)
The dorsal surface of the hand, opposite the palm.
手背
She gently wiped away her tears with the back of her hand.
她用手背轻轻擦去眼泪。
The scar on the back of his hand was from many years ago.
他手背上的疤痕是多年前留下的。
I felt something land on the back of my hand; it turned out to be a leaf.
我感到有东西落在我的手背上，原来是一片叶子。