【计】 count-down
give; hand over; pass; in the proper order; successively
speed-down; deceleration; retard; slowdown; throttle
【计】 decrease speed
【医】 deceleration; negative acceleration
【经】 decelerate
computation; count; take count of
【计】 count; tally; tallying
【医】 count; counted number; counting
【经】 count