vt.

1. 即興創作（詩歌、樂曲等）；即興表演（或朗誦等）
   If an actor forgets his words, he has to improvise.

   演員要是忘記臺詞，那就只好即興現編。

2. 臨時做；臨時提供；臨時湊成
   He improvised a bookcase out of crates.

   他用板條箱臨時做成書架。

vi.

1. 即興創作；即興表演（或朗誦等）
   We left the tent poles behind, so we had to improvise.

   我們忘了帶帳篷支架，所以只好臨時找別的東西湊合。

2. 臨時做事；臨時湊合

v.

1. create and perform (music, drama, or verse) spontaneously or without preparation.
2. produce or make (something) from whatever is available.