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
You're going to be a great success.
你会获得很大的成功的。
It's an honor to be speaking to you today.
今天跟你们说话至感荣幸。
You soar effortlessly over high mountains and deep valleys.