呃～～
.......
这么着理解吧
through 是指从里面穿过,就比如 through the jungle[穿越热带雨林]
而across是指从表面穿过,比如across the Pacific Ocean[横渡太平洋]
trek through
介词through和across的用法与区别
1)through为介词，既可指时间，也可指地点。指时间时表示“在(整整一段时间)中”，指地点时表示“通过，穿过经过”(常有较活的译法)。例如：
① Sometimes they have to work through the weekend.
有时候整个周末他们都得工作。
② All through the night, he waited for news from the front.
整整一夜他等候着前线的消息。
③ She walked rapidly through the rice-fields. 她快步穿过稻田。 ④ The sunlight was coming in through the window.
阳光从窗口照射进来。
⑤ The wind was cutting through his thin prison uniform like a knife.
寒风象一把刀子透过他薄薄的囚服刺入骨髓。
2)across 与 through 的区别：
这两个介词都有“穿过”的意思，但用法却有所不同。across的含义与on有关，表示动作在某一物体的表面进行，常指从宽度意义上讲的“横穿/跨”。through的含义与 in有关，表示动作在某物体的空间进行。例如：
① He hurried across the bridge to Waterloo. 他匆匆过桥到滑铁泸去了。
② The river flows through the city from west to east.
这条河从西向东流过这座城市。
across the forest，through the forest 两种用法都有，均可~
简单的说,ACROSS是横的"穿过"
,THROUGH是纵的,明白?
介词through和across的用法与区别
1)through为介词，既可指时间，也可指地点。指时间时表示“在(整整一段时间)中”，指地点时表示“通过，穿过经过”(常有较活的译法)。例如：
① Sometimes they have to work through the weekend.
有时候整个周末他们都得工作。
② All through the night, he waited for news from the front.
整整一夜他等候着前线的消息。
③ She walked rapidly through the rice-fields. 她快步穿过稻田。 ④ The sunlight was coming in through the window.
阳光从窗口照射进来。
⑤ The wind was cutting through his thin prison uniform like a knife.
寒风象一把刀子透过他薄薄的囚服刺入骨髓。
2)across 与 through 的区别：
这两个介词都有“穿过”的意思，但用法却有所不同。across的含义与on有关，表示动作在某一物体的表面进行，常指从宽度意义上讲的“横穿/跨”。through的含义与 in有关，表示动作在某物体的空间进行。例如：
① He hurried across the bridge to Waterloo. 他匆匆过桥到滑铁泸去了。
② The river flows through the city from west to east.
这条河从西向东流过这座城市。
空间的问题
ACROSS
是越过
THROUGH
是穿过
从中间穿过
所以用
THROUGH
标签：through,across,用法
