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

Textile dyes, such as indigo, were mostly of plant origin until the advent of synthetic chemical dyes.

在合成化学染料出现之前，诸如靛蓝之类的纺织染料主要来源于植物。

youdao

A prevalence of left-handed amino acids would indicate they were biological in origin.

如果左旋氨基酸占大多数的话，就说明这些氨基酸从根源上来说是具有生物性的。

youdao

The court heard Mr Farah, from Birmingham, and Mr Ismail, from Ealing, London, who were of Somali origin, were shot in an alleyway on the Fishermead Estate just after 22:00 GMT on 26 May 2011.

BBC: Teenagers shot dead in Milton Keynes 'drug turf' dispute

Throughout Wales, 2.2% of people were of Asian origin, 0.6% of African, Caribbean or other black heritage and 1% of mixed ethnic origin.

BBC: Census 2011: Largest rise in Wales population since 1951

It is not clear whether both cell lines were of mouse origin.

FORBES: Big Study Linking Chronic Fatigue To Virus May Be Fatally Flawed