1969, American English, shortening of liberation, used with possessives, originally in Women's Lib. Colloquial shortening libber for liberationist is attested from 1971.
雙語例句
1. I spoke from the pulpit ad lib.
我在講壇上發表即興演說。
來自柯林斯例句
2. I voted Lib Dem.
我投了自由民主黨的票。
來自《權威詞典》
3. I lost my notes and had to ad - lib the whole speech.
我把講稿丟了,只好臨時說了一通.
來自《簡明英漢詞典》
4. Throughout the plan she had to ad - lib constantly.