Orchid expert, what is the reason for Ye Tip to go on?

The orchid is moist and ventilated. It is best to use Rain Water to water at noon in winter, not from the heart of the leaves. Change the soil for two years, it is best to use nutritious soil, the soil should be easy to leak. The sun can't shine directly, especially in summer. Sterilization is required every spring. When the flower bud starts, watering as little as possible, the ventilated place is watered once a week, and one-third of the water is managed.