詞匯解析：
1、refree
n. 裁判；主裁判。
As soon as the refree ended the match. hundreds of thousands of Iraqi all over the globe were out in the street partying the joy of the victory.
當裁判宣布比賽結束，全球數十萬伊拉克人涌上街頭慶祝勝利的喜悅。
2、unfree
adj.不自由的。
Unfree countries rarely develop lifestyles that are envied abroad.
缺乏自由的國家很少會發展出讓外國人羨慕的生活方式。
3、carefree
adj.無憂無慮的，快樂舒暢的；逍遙自在；寬暢；閑逸。
She had made their childhood so joyous and carefree.
她使他們的童年充滿歡樂，無憂無慮。
4、costfree
n. 免費。
As long as they remain rhetorical, they are cost free.
只要停留在口頭上，他們就不需要付出代價。
5、referee
n.裁判員；證明人；公斷人；（專業性強的文章的）審閱人。
vi.擔任裁判。
The match will be refereed by Derek Bevan from Wales
這場比賽將由來自威爾士的德里克·貝文執法。