"Sky-high" Natural Recordings by Native Speakers
Extremely high; extremely expensive.
Skutterudite is a rare tin-based mineral used in thermoelectric devices. It has a unique crystal structure that allows it to convert heat into electricity.
Sky-diving, also known as parachuting or bungee jumping, is an adventure sport in which a person jumps from an aircraft or a high platform while attached to a parachute, which slows down their descent and allows them to land safely on the ground.