adv(1)横(越，穿)过，从(到)另一边(from or to the other side)：come/go/swim～to see sb 过来/过去/游过去(来)看某人;Let's go～here.咱们从这里过去吧。The river is very deep.How did he get～? 这河很深，他是怎么过去的? push/roll/slip sb(sth)～to the house 把……推/滚/滑到那座房子那儿;help sb～帮某人通过;look～at sb 向某人那边看;The children called～to us.孩子们从那边招呼我们。

(2)在另一边(on the other side)：They will soon be～.他们很快就要在(到)那边了。He lives just～from her.(AmE)他就住在她对过。He doesn't live on this side of the street.His house is/He lives～from here.他不住在街这边。他的家/他住在街那边。

(3)宽，横(in breadth;from side to side)：The river/street/road is 30 meters～. 这河/街道/路有30米宽。A tornado may be only 100 feet～.龙卷风可能只有100英尺宽。(bomb) blast a hole 50 meters～(炸弹)炸出了一个50米宽的坑;

(4)交叉(crosswise)：stand with arms～两臂交叉站着;

prep(1)横(越，穿)过……，从(到)……另一边(from or to the other side of sth)：come/go/swim～a river to see sb横过/穿过/游过河来(去)看某人;run～a bridge 跑过桥;wander～a square 溜达着穿过一个广场;take a short cut～the fields 抄近道穿过田地;fly～the sky 飞过天空;plan to drive～the continent 计划驾车横穿大陆;push/roll/slip sb/sth～a square 把……推/滚/滑过广场;help/take sb～a railway 帮助/领某人穿过铁道;A smile of pleasure passed～her face.她脸上掠过一丝愉快的笑容。

(2)在……对面(on the other side of sth)：They shall soon be～the channel. 他们很快就要在(到)海峡那边了。live/wait/be～the bridge (from sb)住/等/在桥那头;shout to sb/see sb from～a street 隔着街向某人喊/看见某人;His house is/He lives～the street from the restaurant.他的家/他住在那家旅馆的街对过。a hill/house～the valley峡谷那边的山/房子;

(3)从一边(延伸)到另一边(extending from one side to the other side of sth)：build a bridge～a river在河上架一座桥;draw a line～the map横贯地图画一条线; A tree fell down～the railway line.一棵树倒下横卧在铁道线上。a banner stretched～the street 横挂在街上的横幅标语;a bridge～a river 横跨河两岸的桥;

(4)交叉(so as to be crosswise)：The two lines/two roads cut～each other.两条线/路交叉。The path cuts/The railway line goes～the road. 小路/铁道线与路交叉而过。stand with one's arms～one's chest 双臂交叉在胸前站着;

← cross n 十字形;v (使)交叉;越过;

【辨异】across是“横过”(从一边向另一边);over是“跨过”(越过障碍);through是(从中)“穿过”。