Forgetting clearly aids orientation in time, since old memories weaken and the new tend to stand out, providing clues for inferring duration.

遗忘显然有助于时间的定位，因为旧的记忆会减弱，新的记忆会突显出来，从而为推断持续的时间提供线索。

youdao

I've been skiing since I was eight or nine years old.

我从八九岁就开始滑雪了。

youdao

Children have learned to read and count at my old primary school since the mid-20th century.

20世纪中期开始，孩子们就在我原来的小学里学习阅读和数数。

youdao

I always have been since Magic Johnson and Kareem Abdul-Jabbar and back in the good old days.

VOA: special.2010.06.25

You know Bill, we shaped each other up together and known each other since we are 18, 19 years old.

你知道比尔，我们对彼此产生影响,我们算是一起成长，从18，9岁开始。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

I just have cycled all my life since I was about 11, so it's 50 old years now.

从我11岁开始我就一直骑自行车，现在已有50年了。

自行车是我的朋友 - SpeakingMax英语口语达人

The 47-year-old has since come to lean on his mentor, 23-year-old Eric Leist, for guidance on everything from the latest smartphone apps to the layout for a new office.

WSJ: Reverse Mentoring Cracks Workplace

The 13-year-old has since been found a place at his mother's preferred school - St Mary's in Bexhill-on-Sea, Sussex.

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NATO's role, which has anyway begun to creep beyond its old borders since its involvement in the war in Kosovo.

ECONOMIST: Europe and America