Since ours is an old solar system this dust should have disappeared long ago.

由于太阳系是一个非常古老的星系，因此，这些尘埃粒早就应该消失了。

youdao

Since Lewis died in 1963, the definition of old age has changed - indeed, most of us today are not so much hoping for a long life, as expecting it.

自从刘易斯在1963年逝世以来，人们对老年的定义已经发生了变化——的确，我们中的多数人如今并不希望长寿，而是预料长寿。

youdao

After many decades he returns to his old life to find his former love has long since married.

在几十年后，他回到了过去生活的地方，发现他从前的情人已经结婚很久了。

youdao

Convincing customers to let go of their old phones is a long and tough road, since many consumers are emotionally attached to their old phones.

FORBES: Recycling E-Waste: How One Company Gets It Right

Rather than jumping on this age old band wagon, that has long since been dicredited the government should have the courage to face the reality that drugs are a part of life and a part of British culture.

BBC: Your view on Labour: The first comments we received

Camping in Scotland has come a long way since the old days, when it seemed to be the sole preserve of Boy Scout groups and those willing to endure nights in a soggy field along with hundreds of equally sullen souls.

BBC: A revolution in Scottish camping