The song was composed extempore.
這個曲子是即席作成的.
辭典例句
A great poet once wrote an extempore poem here.
一位大詩人曾經(jīng)在這里留題了一首詩.
期刊摘選
"his ad-lib comments showed poor judgment"
"an extemporaneous piano recital"
"an extemporary lecture"
"an extempore skit"
"an impromptu speech"
"offhand excuses"
"trying to sound offhanded and reassuring"
"an off-the-cuff toast"
"a few unrehearsed comments"
"he spoke extemporaneously"