介词 by和acrossIf you really have to leave during the meeting,you ha_英语解答

介词 by和across
If you really have to leave during the meeting,you had better leave _______ the back door.
为什么不用across?

人气：261 ℃　时间：2020-06-20 17:09:47

解答

by 在这里相当于“经过”=via
across是从平面上方穿过“横穿”