单词 tactus 释义 ‖ tactus Mus.|tkts|[L.: see tact.]= tact 4.1740J. Grassineau Mus. Dict. 130 Metron, Tactus, Mensura, Battuta,—the beating or measuring the time by a motion of the hand or foot.1786Busby Compl. Dict. Mus. s.v. Tactus, ..when the time co...