an ad-lib
ad-lib 是可数名词，前面可以用不定冠词 a/an。
That comment was an ad-lib.
那句评论是即兴说的。
即兴说出的话；没有事先准备的评论。
a remark made spontaneously without prior preparation
即兴说出的话；没有事先准备的评论。
remark made spontaneously without prior preparation
During the Q&A, the speaker's clever ad-lib made everyone laugh.
在问答环节，演讲者机智的即兴发言逗得大家大笑。
用法提示：ad-lib 是名词，表示即兴说出的话。
She is known for her quick ad-libs during live interviews.
她以在直播采访中快速的即兴评论而出名。
用法提示：ad-libs 是 ad-lib 的复数形式，作名词表示即兴评论。
His ad-lib about the weather helped break the awkward silence.
他关于天气的即兴话打破了尴尬的沉默。
用法提示：ad-lib 作名词，指随口说出的即兴话。
ad-lib 是可数名词，前面可以用不定冠词 a/an。
That comment was an ad-lib.
那句评论是即兴说的。
表示“关于……的即兴评论”时用 about 引出话题，常用复数。
Her ad-libs about the weather made everyone laugh.
她关于天气的即兴评论让大家笑了。
make an ad-lib 是常用搭配，表示“说一句即兴评论”。
He made an ad-lib when the microphone stopped working.
他在麦克风出故障时即兴说了一句。
grammar · medium
易错句子He ad-libbed a funny comment during the meeting.
正确表达He made an ad-lib during the meeting.
在本词典中 ad-lib 是名词，表示“即兴说出的话”，不能直接当动词用；表达“即兴说”时需要使用 make 等动词加该名词。
grammar · medium
易错句子The host made two funny ad-lib during the show.
正确表达The host made two funny ad-libs during the show.
ad-lib 是可数名词，复数形式是 ad-libs；前面有 two 等数量词时必须用复数。
improvisation 指即兴创作或即兴表演的过程或结果，范围比 ad-lib 广；ad-lib 作为名词专指没有事先准备的言语评论。
impromptu 作名词时指事先没有准备的短演讲或短曲，侧重“即席”的形式；ad-lib 更侧重“随口说出的话”，多用于日常对话或评论。
off-the-cuff 是形容词或副词，不能像 ad-lib 那样直接作名词使用；表达“他的一句随口话”时要说 an ad-lib，而不说 an off-the-cuff。
Choose the next layer that will help you use ad-lib with more confidence.
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