The Wheel
sled = an object used for travelling over snow and ice with long, narrow strips of wood or metal under it instead of wheels
cog = see hear (https://t.me/espedition/455)
spoke = each of the bars or wire rods connecting the centre of a wheel to its outer edge
greased = lubricated with oil or grease to reduce friction
oxen = plural for an ox = a castrated bull
Pay Attention To Pronunciation
❗️llama [ˈlɑːmə]
#inventions #vehicle #everyday_things