ord.第一百万
n.百万分之一

原形：millionth复数：millionths

The millionth digit of pi is estimated to be around the7, but exact calculations are necessary for confirmation.
圆周率的小数点后第一百万位数字估计是7，但需要精确计算来确认。
The population of this city is expected to reach its millionth inhabitant by the end of the year.
这座城市的人口预计在今年年底将达到一百万。
The millionth copy of the best-selling book was signed by the author and auctioned for charity.
这本畅销书的百万册签名版被拍卖以支持慈善事业。
In the millionth of a second, the camera captured the lightning strike in all its glory.
相机在千分之一秒内捕捉到了闪电的壮观景象。
It took the researchers a decade to sequence the millionth gene in the human genome.
研究人员花了十年时间才完成了人类基因组中的第百万个基因测序。
Reaching the milestone of one million subscribers on YouTube is a significant achievement for any content creator.
对任何内容创作者来说，在YouTube上达到一百万订阅者是一个重要的里程碑。
The odometer rolled over to the millionth kilometer during our cross-country road trip.
在我们横穿全国的公路旅行中，里程表上的数字滚动到了一百万公里。
The company celebrated the production of its millionth car with a grand ceremony.
公司以盛大的仪式庆祝生产出第百万辆汽车。
The lottery winner was the millionth customer to enter the store that day.
彩票得主是那天进入这家店的第百万位顾客。
At the millionth attempt, he finally managed to solve the complex math problem.
经过无数次尝试，他终于在第一百万次时解决了这个复杂的数学问题。