1.b> 1) , , / ; she acted with speed and efficiency ; the bus was travelling at speed when it hit the wall , / ; they were bemused by the speed of events ;
2) , i> ; a speed of 50 mph / 80 kph / 50 / 80 ; at high [low, full, top] speed [, / , ] ; travelling at the speed of light [sound] [] ; to pick up [to gather] speed ( , . i>); at breakneck speed , / ; ;
3) , , i> ; the processing speed of the computer / ; we aim to increase the speed of delivery i> ;
2.b> -i> ( ;i> .i> i>); a four-speed gearbox ; a ten-speed mountain bike .
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