数千年前 Thousands of years ago
数百年前 hundreds of years ago
数百万年前 millions of years ago
数十年前 decades ago
用于表示年代的数字前 You use the in front of numbers when they refer to decades
罗丁太太的丈夫数年前抛弃了她。
机械化数年前在艾莱的农场实现了。
数年前一个炎热的日子里,我那上中学的女儿艾米丽——我所认识的最乐观的人之一,和我一起参加划纸板船比赛。
On a hot day many years ago my the-middle school daughter Emily, one of the most optimistic people I know, was paddling with me in a cardboard boat race.
Well it turns out a bunch of years ago people just decided that if we have the ability to express numbers and we actually care about expressing letters of the alphabet, well we just need some kind of mapping between one and the other, ASCII and so thus was born what's generally called the ASCII.
结果证实,数年前,人们觉得如果我们,有数字表达能力,而我们真正在乎其实是字符的表达,那么我们就需要数字和字符的某种对应关系,于是就有了俗称的。
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