invaluable

• adj. 無價的；非常貴重的

in-,不，非，value,價值。即無法估量價值的，無價的，極寶貴的。同時，也可理解成毫無價值的，但該詞義已做古。

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.

該調查研究在語言學研究領域的重要性應該會得到證實。

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

這本書對於教授文學的老師來說幫助非常大。

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

在那一年裏我有幸獲得了非常寶貴的經驗。

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

**自檢對早期癌症的發現是極為重要的。

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5. The video has become an invaluable teaching tool.

錄像已經成為非常有用的教學手段。

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