on the back
Il avait tout le monde sur le dos, les Brigades blanches.
He had everyone on his back, the White Brigades.
— Amours chiennes (2000)
He was lying on his back.
Tom portait son fils sur le dos.
Tom carried his son on his back.
Les plongeurs ou les hommes-grenouilles ont des bouteilles d'air sur le dos.
Divers or frogmen have air tanks on their backs.
Des chaussures trop petites, des sacs sur le dos.
Shoes that are too small, backpacks on our backs.
— Les Faussaires (2007)
Janos avait des cicatrices sur le dos.
Janos had scars on his back.
He lay down on his back.
Et puis quand je dors sur le dos, je ronfle.
And then when I sleep on my back, I snore.
— Moscou ne croit pas aux larmes (1980)
Il portait son fils sur le dos.
He was carrying his son on his back.