Learner's definition of ABREAST
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used to describe two or more people or things that are next to each other in a line(两个或更多的人或物)并排,并肩
abreast of
1
: next to (someone or something)与…并排;靠拢 2
: aware of or informed about (new occurrences, facts, etc.)了解(最新情况);跟上(最新进展)