• 自然的力量

natural bid实叫naturaladj.自然的；天然的；私生的natural subirrigation自然地下灌溉Natural Heritage site软钢,全脱氧钢,全镇静钢natural coconut water天然椰子水natural birth control自然节育natural vegetable dye植物染料natural air- drying自然晾挂成熟natural protein fiber天然蛋白质纤维natural rock jointing岩体自然节理natural pumpkin juice南瓜汁Natural communication自然连通

1. The natural force of attraction exerted by a celestial body, such as Earth, upon objects at or near its surface, tending to draw them toward the center of the body.
   重力天体如地球，所施加的自然吸引力，如地球，对处于或接近其表面的物体有将它们拉向其中心的趋势