English Words From Voice of America (Charles Kelly)

a machine that uses energy to cause movement or to do work

a person who designs engines, machines, roads, bridges or railroads

to be pleased or satisfied by something

as much as necessary; pro. the amount needed

to come or go into

all surrounding things, conditions and influences that affect life; the natural world of land, sea, air, plants and animals

a special kind of protein; it produces changes in other substances without being changed itself

the same in amount, size, weight or value; having the same rights

things, tools or machines needed for a purpose or activity

to get free; to get away from; to get out of