碰壁的英文：
run into a blank wall
run one's head against a wall
up against the wall

参考例句：

To hit against a wall everywhere
处处碰壁

There are several flies to meet a rebuff.
有几个苍蝇碰壁。

Stubbornness will get you nowhere
固执会使你碰壁。

From one person or thing to another(esp in an unsatisfactory or upsetting way)
到处奔走;(尤指)到处碰壁

The second snub settled his hash.
第二次碰壁使他不敢再找麻烦了。

I demonstrated the technique by touching my forefinger to the African sculpture on the mantle
"我用大拇指碰了碰壁炉上的非洲雕塑，进行示范。

You and Mom hit a wall together. She looks at you and asks, “What does this mean?
你和你的母亲这时碰壁了，她看着你问道：“这是什么意思？

run是什么意思：
n. 奔跑，跑步；旅行；趋势
v. 跑步，奔跑；逃跑；参赛；行驶；运转；（使）流动；管理

run the rapids.
冲过急流

Run (or Hold) with the hare and hunt (or run) with the hounds
两面讨好

Hold (or Run) with the hare and run (or hunt) with the hounds
两面讨好

into是什么意思：
prep. 进入…中；进入…状态；持续到；输入
blank是什么意思：
adj. 空的，空白的；茫然的；空虚的；单调的
n. 填空处，空白表格；空白；空虚
v. 封锁；阻止（对手）得分；（使）消失；使模糊

application blank
申请书空白表格

There is a blank wall.
有面无窗的墙。

a blank space or missing part.
一个空的或不存在的地方。