钥: The key, the lock and key. A metaphor for the pivotal element in accomplishing a task, also symbolizing a strategic military stronghold.
柠: The lemon, known as "Ding Ning" in Chinese, symbolizes strong adaptability and the ability to harmonize.
Meaning: The key symbolizes preciousness and unlocking, while lemon represents freshness and vitality, signifying a precious and vibrant life.