Ключевые слова: arow, arrows, button, change, circular, circulate, circulation, commute, confusion, contra, cycle, down, exchange, forward, icon, interchange, leftright, loop, motion, opposite, opposition, process, recurrence, recurring, recycle, recycling, redo, refresh, reload, renew, renewable, repeat, repetition, replacement, reuse, revert, rotation, session, shape, shuffle, spin, swap, switch, symbol, sync, synchronization,