extempore
adj, adv (spoken or done) without previous thought or preparation; impromptu 无准备的; 即席的
an extempore speech 即席讲话
speak extempore, ie without notes 即席发言.
🗣️ 情景例句
Now, let me explain one point to you.
现在,让我就这一点进行说明。
I hesitate to ask you, but will you lend me some money?
也许我不该问你,你能借我一些钱吗?
I like reading English books, but they're sometimes rather hard.