基本解释n.千分之一同根派生 one-thousandth相关词英汉例句用作名词 (n.)A dust particle weighs only a thousandth of a gram.一粒尘埃的重量仅有千分之一克。There is one chance in a thousand that he will fulfil the plan.他实现自己计划的机会只有千分之一。one-thousandth更多例句