도도한 Reading 길들이기-도약1 Unit 4/1 (E)

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세트공유

expire

To expire is to no longer be effective because its use has come to an end.
My driving licence expired last month.

free

able to do what you want to do
When you buy the product, you can even get a free gift.

limit

a point where something ends
We must limit the amount of time we spend on this work.

pay

to give (money) to (someone) in exchange for goods, services etc
He paid $5 for the book.

per

for each
We have less than one mistake per page.

present

a gift
He didn't give me any present for my birthday.

resale

재판매
Make sure that the samples are not for resale.

upgrade

To upgrade something means to improve it or make it more efficient.
How much will it cost me to upgrade my computer?