across 作为介词有两个主要意思：① 横过，如：I want to walk across the street.② 对面，如：There is a post office across the street,而through 多用于三维空间中的穿越。across则多用于平面上的横过。如：The little girl ran across the room to meet her mother.
［误］ It took them two days to walk across the forest.
［正］ It took them two days to walk through the forest.
［析］ across 作为介词有两个主要意思：① 横过，如：I want to walk across the street.② 对面，如：There is a post office across the street,而through 多用于三维空间中的穿越。across则多用于平面上的横过。如：The little girl ran across the room to meet her mother.
与单词：post office 相关的例句或者名人名言
The post office is just across from the club.
邮局就在那俱乐部对面。
Each evening I had to take sacks of packages to the post office for mailing.
每天晚上我要把一袋袋包裹送到邮局寄出去。
N-COUNT. 邮政编码. Your zip code is a short sequence of letters and numbers at the end of your address, which helps the post office to sort the mail.
