Walk ______ the bridge and turn left. A. over B. across 请解释
问题描述：
Walk ______ the bridge and turn left. A. over B. across 请解释
答
A
over 有从高空穿过的含义，如从建筑上空飞过，fly over the building
across一般表示的是从表面穿过，如过马路，walk across the road
答
walk over the bridge 穿过桥一般用over
穿过马路，用across,都是固定搭配
答
选A
over 是指在.上面经过
across是横穿,比如横穿马路,总不能横穿桥吧?