Her confession was simply tantamount to a casual explanation.

她的自白简直等于一篇即席说明。

I’m sure his remarks were rehearsed, not impromptu.

我肯定的话是预先想好的, 不是即席讲的。

He coached the young man in the theatre and developed his power of improvisation.

辅导那位年轻人,养的即席表能力。

He improvised a song about the football team’s victory.

即席创作了一首足球之歌。

She had made these remarks offhandedly.

她即席做了这些评价。

He has to extemporise because he has forgotten to bring his note

因为忘了带讲稿,只好即席发言。

He is doing an unseen.

正在即席翻译一篇东西。