board

go by the board

(of something planned or previously upheld) be abandoned, rejected, or ignored

（计划或坚持的事情）被放弃，荒废，被拒绝

my education just went by the board.

我的教育荒废了。

on board

on or in a ship, aircraft, or other vehicle

在船（或飞机等）上

take something on board

(informal)fully consider or assimilate a new idea or situation

(非正式)充分考虑，完全采纳

tread (或 walk) the boards

(informal)appear on stage as an actor

(非正式)（作为演员）上台表演

On board

Aboard.

在船上

On the job.

在工作