abreast /əˈbrest/ adv. 1. 并肩地，并排地：The path was wide enough for two people to walk abreast. 这条小径宽能容两人并肩而行。2. 用于习语 keep abreast of…与…并进；能跟上…的发展：It is almost impossible to keep abreast of all the latest developments in computing. 要跟上计算机技术领域所有最新的发展几乎是不可能的。