a particular task or duty
Hey Lucy, did you finish the assignment that Mr. Miller gave us?
balance
the ability to control one's weight and position in order to stand or move well
Squirrels use their tails to keep balance and monkeys can hold on to trees with theirs.
be due on
~까지 마감이다
It’s due on Thursday, you know.
communication
the sharing of information, news, etc.
Computers are generally used as communication tools.
expand
to get bigger
I didn’t know that the population of the United States expanded so quickly.
function
the purpose for which a thing is used
Last class, we studied the functions of insects’ wings.
means of protection
보호 수단
Tails can also serve as a means of protection.
misinterpret
잘못 이해하다
You must have misinterpreted the assignment.
outskirts
the outer parts of a city or town
I helped take care of the injured in the hospital and delivered food and water to the outskirts.
participate
to take part in an activity or event with others
You have to sign up on their website and choose what kind of volunteer program you want to participate in.
suffer
to have a illness or medical condition
Well, as you know, they suffered a major earthquake a few months ago.
video clip
영상, 비디오
Now, let’s study them in more detail by watching a video clip.
volunteer
a person who offers to do something; a person who works without pay
I spent some time in Nepal as a volunteer.