sand, sands, gravel
pebbles/gravel
gravel
gravel, rubble
cartilage, gristle, gravel, grit
gradually, gravely
severely ill, critically ill, gravely ill
Легко потеря́ть равнове́сие на насыпном гравии.
It's easy to lose your footing on loose gravel.
Том серьёзно бо́лен.
Tom is gravely ill.