[kǎo yàn]
test; trial; ordeal
long-tested
久经考验的
methods that have stood the test of time
经受住时间考验的方法
stand the ordeal
经受严峻的考验
pass through a terrible ordeal
经历一种可怕的考验
His courage was put to the test.
他的勇气受到考验。
It cannot bear the test of ...
它经不起 ...考验。