(使)與…齊頭并列,(使)與…并駕齊驅(qū);(使)不落后于;跟上：

Tony was abreast of the leading runner for a few minutes but then fell behind.
托尼趕上領頭的賽跑運動員好幾分鐘,可是后來落后了。；及時了解(新生事物);與…并連：

Scientists must be abreast of the latest discoveries and developments.
科學家們必須跟上最新的發(fā)現(xiàn)和進展。