What do the four railways generally mean?

The four irons generally refer to: iron belief, iron belief, iron discipline and iron responsibility.

The correct use of words to effectively explain and describe such technical terms can make people understand their main contents and situations well.

Pay attention to the following points when using words correctly:

1. The scope of meaning is different.

For example, "reclamation, development and exploitation" all means "exploitation", but "reclamation" means vigorously developing wasteland into cultivated land; "Development" refers to expansion on the basis of the original development; "Pioneering" mainly refers to new development and creation, with a wide range of meanings.

2. Words have different meanings.

For example, both "talent" and "talent" contain the meaning of ability and specialty, but "talent" mainly refers to the ability to do things or use knowledge, skills and skills, while "talent" mainly refers to the wisdom and specialty revealed in literature and art;

Both "discovery" and "invention" have new meanings, but "discovery" focuses on discovering things that already exist, while "invention" focuses on creating things that don't exist.

3. Words have different meanings.

For example, "damage" and "destruction" both mean destroying an object, but "damage" is generally unintentional and "destruction" is intentional;

"Slander" and "frame-up" both refer to falsely claiming that others have done bad things, but the former is fabricating facts to damage others' reputation, while the latter is falsely accusing and framing, and the two are different in weight.

The habitual collocation of 1. is different.

Such as: carry forward-advantages, styles, traditions; Role-playing, drive, creativity and enthusiasm; Improve work, methods and technologies; Improvement-life, relationships and conditions; Exchange ideas, experiences and materials; Communication-ideas, gifts, information.

2. Different parts of speech and syntactic functions.

Such as: hinder (verb)-exploitation hinders the development of production; Obstacles (nouns)-remove all obstacles; Powerful (adjective)-powerful motivation comes from lofty ideals;

Expand (verb)-more people can expand the momentum; Essence (noun)-this is the essence of the book; Wonderful (adjective)-This is the most wonderful part of the book.

3. The applicable objects are different.

Such as: love- love, the former is used for superiors to subordinates, elders to juniors or peers, while the latter is used for subordinates to superiors and juniors to elders; Support-support, the former is used for elders to younger generations, and the latter is used for younger generations to elders.