1. Place of origin; derivation; 起源的地方，出处
Example sentence:
1. Harmon and Valerie Craig, of the University of California at San Diego, reported in the journal Science a new technique for establishing the provenance of the marble used in ancient buildings and statuary. They collected 170 samples from the old Greek quarries on the islands of Náxos and Páros and at Mounts Pentelikon and Hymettus, both on the mainland near Athens. These four areas were the most popular sources of marble in the old Greece. Samples were tested for their content of the isotopes carbon-13 and oxygen-18. The samples from Páros, Mount Pentelikon, and Mount Hymettus showed remarkable consistency in their carbon-13 and oxygen-18 contents.
加州大学圣地亚哥分校的Harmon和 Valerie Craig在科学杂志期刊上报道了一种确定古希腊建筑和雕塑中大理石出处的新技术。他们从离雅典很近的Náxos, Páros岛上和Pentelikon,Hymettus山里的古希腊采石场里收集了170个样本。这四个地方时古希腊大理石的主要来源地。检测了这些样本的碳13和氧18的含量。从Páros, Mount Pentelikon, and Mount Hymettus采集的样本中碳13和氧18的含量非常一致。
2. John pointed out that the research focused on carcass meat. Risks to UK consumers could arise from the import of meat products (such as salamis) which usually contain beef, as it is difficult to ascertain the age and provenance of any cattle-derived contents.
John指出对疯牛病的研究大都集中在屠宰牛肉。进口肉制品（如意大利辣香肠）对英国消费者的危险可能上升，而这些肉制品可能含有牛肉，但很难确定任何加工牛肉制品的期限和来源。
Bovine Spongiform Encephalopathy (BSE) 牛海绵体病(疯牛症)
Since it was identified in the mid-1980s in Britain, mad cow disease, or BSE, has resulted in the slaughter of millions of cattle -- and the deaths of dozens of people from the related brain-wasting disease.
