| 单词 | bonanza |
| 释义 | Word Frequency bonanza(bəˈnænzə) noun 1. a source, usually sudden and unexpected, of luck or wealth 2. US and Canadian a mine or vein rich in ore Word origin C19: from Spanish, literally: calm sea, hence, good luck, from Medieval Latin bonacia, from Latin bonus good + malacia dead calm, from Greek malakia softness |
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