n.純度標(biāo)記；標(biāo)志；特征

vt.標(biāo)純度

One hallmark of a good politician is his ability to influence people. 衡量一個(gè)優(yōu)秀政治家的標(biāo)志之一就是他影響大眾的能力。

Clear expression is the hallmark of a good speaker. (喻)清晰的表達(dá)能力是一位出色的演說(shuō)家的特征。

The research, carried out on mice, suggested caffeine hampered the production of the protein plaques which are the hallmark of the disease. 研究人員用老鼠做實(shí)驗(yàn)，發(fā)現(xiàn)咖啡因可以阻止蛋白斑塊積聚，而這種蛋白是早老年性癡呆發(fā)病的典型特征。

Given the prevalence of synthetic Alexandrite, they are also a fascinating hallmark of authenticity that helps us distinguish real gems from artificial impostors. 在人工合成亞力山大石流行的今天，內(nèi)含物是鑒別寶石天然純度的一個(gè)重要標(biāo)志，有助于我們將天然寶石與人工合成贗品區(qū)別開來(lái)。