1, Pillar: Pillar originally refers to the pillar that supports the beam in the building structure, refers to the person or thing that plays a very important role in life, and is a metaphor for the backbone force that plays a major role.

2. backbone: the core strength to rely on and the unchanging pillar.

3. Leaders: Leaders, who stand out from the competition of sheep's survival of the fittest and self-elimination, have natural high prestige and are the natural combination of "power" and "prestige", or refer to leaders who play a leading role in the group.

4. Leading geese: the same leader refers to the person who plays a leading role in the group.

5. Depth Charge: Depth Charge refers to the soldier standing at the front of the team, and refers to the leader or the best.

6. Wind vane: The original meaning of the word wind vane is a device to measure the direction of the wind, and later it is extended to the development trend and direction of things.