What are some positive four-character idioms in middle school students' copybooks?

Through thorns p and j and ng zh m: NJI

[Interpretation] Put aside; Chop: cut off; Vitex negundo: A tufted spiny shrub. Clear the way; Cut the spine. Refers to removing obstacles in the entrepreneurial stage; Strive hard, it also means clearing all kinds of obstacles on the way forward; Overcome various difficulties.

[Language] "The Biography of Feng Yi in the Later Han Dynasty": "The emperor called the Communist Youth League:' It was the main book when I started my army; Cover me with thorns; Set the Guanzhong. " "

[pronunciation] spine; It can't be pronounced "√".

Spine; Can't be written as "thorn" or "spicy".

Brave the wind and waves and go forward bravely.

[Antonym] Timid and timid, looking forward and backward.

[Usage] It is often used to describe the hardships of starting a business. Generally used as predicate, object and adverbial.

[Structure] Combined type.

Discrimination ~ is different from "riding the wind and breaking the waves": both of them have the meaning of "overcoming difficulties on the road ahead". The difference is that ~ means "clearing all kinds of obstacles on the road ahead and opening up wasteland"; "Riding the wind and breaking the waves" means being ambitious, going forward bravely and sailing at high speed.

[Example] Our ancestors worked for the founding of New China; Throw one's head and shed blood; ~ that's why I have a happy life now.