The bonheurs-du-jour are beautiful flowers.

The beaches of Bouches-du-Rh\u00f4ne are beautiful.

The girls from the port are very hardworking.

The carbon cycle is essential for life on Earth.

The cold chain is essential for the preservation of perishable foods.

Cold chains are essential for preserving perishable products.

She's clueless and doesn't know how this phone works.

They fell off the truck on the way to the party.

These goods did not fall off the truck, they are authentic.

You need to be experienced to succeed in this field.