naturaladj.自然的;天然的;私生的
natural set天然铺石
natural BIE自然边界积分方程
natural dry自然干燥
natural dam天然坝
Natural gem天然宝石
natural man自然人
naturalbornadj.生来的(天生的)
natural sett天然铺石
natural fool天生的傻瓜
natural wind天然风,自然风
"The stories had become naturalized into an American setting"
"The French family was naturalized last year"
"domesticate oats"
"tame the soil"