Reading for Speed and Fluency 2/e 4 영영 Unit 30

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세트공유

heat

n. energy that makes things warm
This region is very warm because of the sun's heat.

Europa

n. the fourth-largest moon of Jupiter
Europa is one of Jupiter’s largest moons.

sign

n. an action or event that indicates something
There is a stop sign here at the corner.

call off

n. to cancel an activity
I have a appointment. I may have to call off the party.

warmth

n. the quality of being warm
He could feel the warmth from the sun.

extremely

n. to a very high amount or degree
I was extremely tired because I worked until 3 in the morning.

salt water

n. water that is found in the sea, not in rivers and lakes
However, 97 percent of the Earth's water is salt water.

underneath

n. below; on the bottom part
The roots of a tree are located underneath the ground.

force

n. a power that makes something happen
He used all his force to try and open the door.

sample

n. a small amount of something, used for testing it
The researcher collected several samples of drinking water in the area.