Ad-libbed
v. 即兴演出( ad-lib的过去式和过去分词 ); 当场作出; <口>随口说出（俏皮话）; 无准备地说（或做）
🧩 词语组成解析
ad
[æd]
n. 广告;网球中的优势分advantage. ad in;
🗣️ 情景例句
do I really have to
我是不是真的有必要
We can spend hours talking about computers.
我们可以花些时间一起聊聊电脑。
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。