created sense approved 试金石/試金石 · shìjīnshí · figurative test
试金石 / 試金石
shìjīnshí
figurative test
a standard or criterion used to determine the quality, authenticity, or value of something
这次艰巨的任务是检验他能力的试金石。
noun
created sense approved 试金石/試金石 · shìjīnshí · touchstone
试金石 / 試金石
shìjīnshí
touchstone
a hard stone used to test the purity of gold or silver by the color of the streak produced on it
古代金匠使用试金石来检测黄金的纯度。
noun