across：
adv.從一邊到另一邊;橫過(guò);寬;從…的`一邊向…;在對(duì)面;在對(duì)過(guò)；
prep.從…一邊到另一邊;橫過(guò);在…對(duì)面;在…對(duì)過(guò);在(身體某部位)上；
例句：
The general had to get his troops across the river.
將軍必須讓部隊(duì)過(guò)河。
There's a school just across from our house.
有一所學(xué)校就在我們房子對(duì)面。
This view is common across all sections of the community.
該社群所有階層的人普遍持有這種看法。
The industry needs more investment across the board.
這一行業(yè)需要全面增加投資。