assay

a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components

一种物质（尤指矿石或药物）的定量或定性测试，以确定其成分

frequently used to test for the presence or concentration of infectious agents or antibodies etc.

常用于检测传染源或抗体等的存在或浓度。

an appraisal of the state of affairs

对事态的评估

they made an assay of the contents

他们对里面的东西作了化验

a check on its dependability under stress

在压力下对其可靠性的检验

check

a written report of the results of an ysis of the composition of some substance

对某种物质成分的分析结果的书面报告

a substance that is undergoing an ysis of its components

正在进行成分分析的物质

yze (chemical substances)

分析（化学物质）

make an effort or attempt

努力或尝试

He tried to shake off his fears

他试图摆脱恐惧

The infant had essayed a few wobbly steps

婴儿蹒跚地走了几步

The police attempted to stop the thief

警察试图阻止小偷

He sought to improve himself

他努力提高自己

She always seeks to do good in the world

她总是想在这个世界上做好事

try

seek

attempt

essay