tempo

名词 tempo:

1. (music) the speed at which a composition is to be played
   同义词：pacing
2. the rate of some repeating event
   同义词：pace

1. All this was comparatively slow until, with the coming of science, the tempo was suddenly raised.
   所有这些发展都比较缓慢，直到出现了科学，其速度才突然加快。
2. Your tempo is too slow.
   你演奏的速度太慢了。