proven useful翻译
proven useful的基本解释
读音: 美: 英:
证明有用：在使用或经历之后证明是有用的。
例句
There are no agents proven useful for this purpose in lung cancer.对于肺癌，还没有试剂被证明能实现这个目标。Earthquake prediction, practiced anywhere in the world, remains to be proven useful.地震预测，虽然全世界都在进行，是否有用仍然有待证明。
Nonetheless, it has also proven useful as a gauge of an economy's capacity to improve living standards.尽管如此，他在衡量社会生活水平方面，依然被证明是有用的。
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