abreast of1.■(使)与…齐头并列,(使)与…并驾齐驱;(使)不落后于;跟上：Tony was abreast of the leading runner for a few minutes but then fell behind.托尼赶上领头的赛跑运动员好几分钟,可是后来落后了。2.■及时了解(新生事物);与…并连：Scientists must be abreast of the latest discoveries and developments.科学家们必须跟上最新的发现和进展。