abreast

形容词 abreast:

1. being up to particular standard or level especially in being up to date in knowledge
   同义词：au courant, au fait, up on

副词 abreast:

1. alongside each other, facing on the same direction

1. A Russian carriage drawn by a team of three horses abreast.
   三驾马车由三匹马并肩拉的俄国式马车
2. Over the first four laps, Bedford stayed abreast of the German runner.
   在头四圈里，贝德福德一直与那名德国赛跑选手并驾齐驱。
3. The ships were abreast of the fort.
   那些船与炮台处于同一水平位置。