【计】 classes of exchange
phone; phone call; telephone
【法】 telephone
exchange; interchange; change for; commute; permutation; reciprocation
replacement
【计】 exchange; swap; swapping; switching; transput; X
【医】 chiasmapy; cross-over; crossing-over
【经】 interchange; swap
bureau; game; chessboad; limit; office; station
【经】 bureau
level; rank; scale
【计】 classes; level
【化】 level