invaluable

• adj. 无价的；非常贵重的

in-,不，非，value,价值。即无法估量价值的，无价的，极宝贵的。同时，也可理解成毫无价值的，但该词义已做古。

invaluable (adj.)

1570s, "above value," from in- (1) "not" + value (v.) "estimate the worth of" + -able. It also has been used in a sense "without value, worthless" (1630s).

1. The research should prove invaluable in the study of linguistics.

该调查研究在语言学研究领域的重要性应该会得到证实。

来自柯林斯例句

2. The book is an invaluable aid to teachers of literature.

这本书对于教授文学的老师来说帮助非常大。

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3. I was able to gain invaluable experience over that year.

在那一年里我有幸获得了非常宝贵的经验。

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4. Breast self-examination is invaluable for detecting cancer in its very early stages.

**自检对早期癌症的发现是极为重要的。

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5. The video has become an invaluable teaching tool.

录像已经成为非常有用的教学手段。

来自柯林斯例句