ad lib

US /ˌæd ˈlɪb/
UK /ˌæd ˈlɪb/
"ad lib" picture
1.

即興表演, 即興講話

speak or perform in public without previously preparing one's words

:
The comedian had to ad lib when his script was lost.
當劇本丟失時,喜劇演員不得不即興表演
She's good at ad-libbing during interviews.
她擅長在採訪中即興發揮
1.

即興台詞, 即興表演

a remark or gesture made without previous preparation

:
His witty ad lib got a huge laugh from the audience.
他機智的即興台詞引得觀眾哄堂大笑。
The director allowed the actors to add some ad libs to the dialogue.
導演允許演員在對話中加入一些即興台詞
1.

即興地, 隨意地

without previous preparation

:
He spoke ad lib, surprising everyone with his impromptu speech.
即興發言,用他的即興演講讓所有人感到驚訝。
The musicians played some parts ad lib during the jazz performance.
爵士樂表演期間,音樂家們即興演奏了一些部分。