Changes in speed and direction تغییر سرعت و جهت gather/pick up speed As it left the city, the train gathered/picked up speed and headed north وقتی که قطار از شهر خارج شد سرعت گرفت و به سمت شمال حرکت کرد. The cart gathered speed as it coasted down the hill گاری در حالی که از […]