1. You are my hemoglobin cells, I can’t breathe without you; she is my white blood cells, without her I will be in crisis.

2. I hope that the three people are like the cell wall, cell membrane, and nucleus of a plant. No matter who is the core, we are a whole and will never be separated.

3. You, me, and him are all the marrow cells of our friendship tree. As we continue to grow, the friendship tree will grow stronger.