the Trinity (in Christianity)- three in one

the union of Father, Son and Holy Spirit as one God

三位一体（圣父、圣子及圣灵合为上帝）

vapor-a mass of very small drops of liquid in the air

steam-the hot gas that water changes into when it boils

ice-water that has frozen and become solid

water-a liquid without color, smell or taste that falls as rain, is in lakes, rivers and seas, and is used for drinking, washing, etc.