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[단어. 숙어]

1.  다음 중 짝지어진 단어의 의미가 어색한 것을 고르시오.¹⁾

① painkiller: a medicine to kill the pain

② crack up: to laugh a lot or cause to experience a great deal of amusement

③ identify: to establish the identity of

④ actual: merely potential or possible

⑤ embarrass: to cause to feel ill; at ease