hallmark

名词 hallmark:

1. a distinctive characteristic or attribute
   同义词：trademark, earmark, stylemark
2. a mark on an article of trade to indicate its origin and authenticity
   同义词：authentication, assay-mark

1. The plan has all the hallmarks of being a total failure.
   这个方案具有彻底失败的一切标志。
2. Attention to detail is the hallmark of a fine craftsman.
   能工巧匠的特点是一丝不苟。

hall.mark

n.（名词）
A mark indicating quality or excellence.
纯正标记：一种指明质量或品质的标记
A mark used in England to stamp gold and silver articles that meet established standards of purity.
纯度标记：用于英国的标在金、银制品上的同设立的纯度标准相符的标记
A conspicuous feature or characteristic:
标志：显而易见的特点或特征：
例句：
.The sense of guilt is the hallmark of civilized humanity.(Theodor Reik)
.犯罪感是文明人显而易见的特征.(西奥多·赖克)

v.tr.（及物动词）
hall.marked,hall.mark.ing,hall.marks
To stamp (gold and silver articles) with a mark indicating purity.
标纯度：给（金、银制品上）标上指明纯度的标记

来源：
After Goldsmith`s Hall in London, England, where gold and silver articles were appraised and stamped
源自金匠的 会堂 ，位于英格兰伦敦，在此对金银物品进行鉴定和做标记