The church organist may improvise on a ground bass.

教堂风手低音即兴演奏。

We improvised a tent out of two blankets and some long poles.

我们用两条毛毯和几根长竿搭成一个临时帐蓬。

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

他即席创作了一首足球队胜利之歌。

He was a composer of songs and a wonderful conductor, a man who could improvise lines on the moment.

他是一些歌曲的作者和一位出色的指挥者, 也是一位即兴作诗的人。