1.abroad到国外 go abroadboard 板 on board2.across 介词,表面穿过 walk across the roadcross 动词 cross the roadthrough 介词,空间穿过 go through the windowpast 介词,经过 walk past the post officepass 动词 pass the test3. alive 活着的 I am still alive.live现场直播 is covered live 居住 live in the citylively活泼的 make his class lively and interestinglivingmake a living/ a living room4.lonely孤独 feel lonely孤零零 a lonely housealone独自 live alonealong沿着 walk along the street