improvise

1.[i][t]临时拼凑；临时做to make or do sth using whatever is available, usually because you do not have what you really need

2.[i][t]即兴创作（音乐、台词、演讲词等）to invent music, the words in a play, a statement, etc. while you are playing or speaking, instead of planning it in advance

1.即席创作,即席演奏[演唱]

2.临时准备,临时凑成

1.to do something without preparing it first, often because the situation does not allow you to prepare; if a performer in a play or a group of musicians improvises, they invent words or musical notes without preparing them or learning them before

2.to make something from whatever is available, although it is not what you normally use