If surviving copies are few, the stemma perforce brings into proximity manuscripts that were widely separated in time and place of origin.

如果现存的手稿很少，家谱就必须纳入那些在时间和族地都分散的手稿。

youdao

What I do find interesting is the origin of the universe, the shape of space-time and the nature of black holes.

我真正感兴趣的是宇宙的起源、时空的形状和黑洞的性质。

youdao

The origin of western theatre goes back into the mists of time but seems to have begun to take recognizable shape about 2600 years ago in greece-and wine was a key ingredient.

西方戏剧的起源已经消失在历史的迷雾当中，但似乎在大约2600年以前的希腊，它已经有了我们熟悉的样子，——葡萄酒是其中一个关键因素。

youdao

It has to have an origin of replication, which we talked about last time, which is compatible with the cells.

所以质粒必须带有复制起点,我们上次讲过,该起点要与受体细胞匹配

耶鲁公开课 - 生物医学工程探索课程节选

This is why he's continually placing the imaginative origin of the poem back to the very dawn of time, perhaps even back before if you can imagine such a time -- before the very dawn of time.

这就是为什么弥尔顿总是试图把想象中的这首诗的起源,推至时间开始的时候，甚至更早,-如果你们能想象这样一个时间--在时间开始之前。

耶鲁公开课 - 弥尔顿课程节选

In the main, the rules of origin are complex and the paperwork time-consuming.

ECONOMIST: Regional economic integration has a long, long way to go

Before acting, he added, the UK must be sure that an offender's country of origin was willing to imprison them for the same length of time as they would serve if they stayed in domestic jails.

BBC: The exterior of Norwich prison

They looked at 119 genes that have accumulated mutations over the passage of time, allowing the relative times of origin of each species to be estimated.

BBC: Earth AP