Quattro Reading(Word List)-Start A Unit 25 (E)

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세트공유

back

to a place, situation or way of being where something or someone was before
I go back home after school.

bacteria

tiny living organisms that can sometimes make you sick
The appendix is useful because of bacteria.

damaged

injured or ruined
The damaged section was reopened to traffic five hours later.

get better

to improve one's health; to recover from an illness
I hope she gets better soon.

helpful

providing help
The appendix quickly puts helpful bacteria back into the body.

organ

a part of a person's body that does a certain job
Do you know what is the biggest organ in our body?

remove

to get rid of something completely
I removed the mud from my shoes.

useful

being needed; having a purpose
Having a computer is useful when writing an essay.

useless

being not needed; having no purpose
Do you think the appendix is a useless organ?