Why do many teachers abbreviate the words "gao", "wai", etc. What are those words?

The abbreviations of "Gao", "Waiting" and other words are as follows

Waiting:

The pinyin of "Gao" is: gāo

1 , the distance from bottom to top is large, which is opposite to "low": ~ peak. ~Empty. ~ju. ~Original. ~ Shrug. ~ Mountains and flowing water (a metaphor for a close friend, a close friend, or a wonderful piece of music). ~ House building a stronghold (describing a condescending situation). ~Look far ahead.

2. Height: He is ~1.8 meters.

3. Those with higher levels: ~ level. ~Test.

4. Above the general standard or average level: ~ quality. ~ Consumption. ~ Price. ~ file. ~Hand. ~Can do physics.

5. Loud voice: sing songs.

6. Respectful words, referring to other people’s things: ~ see. ~Just. ~ On. ~Shou. ~ Hall. ~ Disciples.

Word group:

1. Flatter Gaozhi

Pinyin: bājié gāo zhī.

Simplified pinyin: bjgz.

Explanation: Gaozhi: a metaphor for powerful people. To flatter the rich and powerful.

Example: What she wants most is to escape from the lower class society.

Synonyms: Ba Gaowangshang.

Afterword: Bastard climbs the tree.

Grammar: used as predicate and object; used in life.

2. Bagao Wangshang

Pinyin: bāgāo wàng shàng.

Simplified pinyin: bgws.

Explanation: Refers to making friends or marrying people whose social status is higher than one's own.

Source: Chapter 46 of "Dream of Red Mansions" by Cao Xueqin of the Qing Dynasty: "Don't say he is a mandarin duck. Who is he? Who doesn't want to be high-minded or stand out?"

Example: The thought of ~ is inevitable.

Synonyms: follow the trend.

Grammar: used as predicate, attributive, and complement; refers to flattering someone who is better than oneself.

3. Ba Gaozhier

Pinyin: bāgāo zhīér.

Simplified spelling: bgze.

Explanation: A metaphor for climbing high.

Source: Chapter 32 of Wenkang's "Heroes of Sons and Daughters": "I'm not afraid of people laughing at my slave relative, the bastard Gao Zhi'er. I can be considered my godmother today!"

4. Pick up the high and step on the low

Pinyin: bāgāo cǎi dī.

Simplified spelling: bgcd.

Explanation: It is a metaphor for flattering and clinging to those above and bullying and suppressing those below.

Source: "Selected Chinese Folk Stories: The Traitor Li Siyi": "[Li Siyi] is a man who picks up those who are high and suppresses those who are low, and is good at rising above the water."

Synonyms: bullying The red tramples on the black, bullying the weak and fearing the strong.

Antonym: peaceful place.

Grammar: used as predicate and attributive; refers to the relationship between superior and subordinate.