We broke through countless enemy encirclements and blockades until we finally reached northern Shanxi.是什么意思？

We broke through countless enemy encirclements and blockades until we finally reached northern Shanxi.

我们突破了敌人无数次的包围和封锁,最后到达陕北.

we

pron. 我们，咱们，笔者，本人，朕，人们；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

broke

vt. 打破（break的过去式），折断；adj. 破产的，缺乏资金的；

例句
Rosie's idyllic world came to an abrupt end when her parents' marriage broke up...
父母婚姻的破裂使得罗茜田园诗般美好的世界陡然画上了句号。

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

countless

adj. 无数的，多得数不清的，恒河沙数，指不胜屈，数不胜数；

例句
Paul had arrested countless men like this one before and was expecting a clean, quick job.
此前，保罗逮捕过无数个这样的家伙，他估计这次能手到擒来。

enemy

n. 仇敌，敌军，危害物；adj. 敌人的，敌方的，与敌对力量相关的；

例句
...an advance on enemy positions...
向敌方阵地推进

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

blockades

n. 封锁( blockade的名词复数 )，障碍物，阻碍物；v. 实行封锁( blockade的第三人称单数 )，阻塞，挡住；

例句
Striking lorry drivers agreed to lift their blockades of main roads...
罢工的卡车司机们同意解除对主干道的封堵。

until

prep. 到…为止，在…以前；conj. 到…为止，在…以前，直到…才；

例句
The threat is likely to remain in abeyance until next year's meeting in Reykjavik.
这一威胁很可能会一直存在下去，直至明年的雷克雅未克会议。

finally

adv. 最后，终于，总算，末后，结果；

例句
...until the great day came when the Germans could finally settle accounts with the British...
直到德国人最终能和英国人清算旧账的重大日子的来临

reached

v. 到达( reach的过去式和过去分词 )，联络，伸出手臂，延伸；

例句
When the barge reached the shrine, acolytes removed the pall.
当驳船抵达圣地时，辅祭除去了柩衣。

northern

adj. 北方的，北部的，来自北方的，北风；

例句
What really sets Mr Thaksin apart is that he comes from northern Thailand...
他信先生真正与众不同之处是他来自泰国北部。