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| NOUN |
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| /iː/ |
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| 1 | C/U the fifth letter of the English alphabet . E is a vowel . 英语字母表的第5个字母（为元音字母） |
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| 2 | E C/U the third note in the musical scale of C major C大调音阶中的第3个音符 |
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| 3 | E C/U informal the illegal drug ecstasy , in the form of a pill 摇头丸；迷幻药 |
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| 4 | E C BRITISH a mark that a teacher gives to a student’ s work to show that it is very bad E等（表示学业成绩极差） |
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| 5 | E C informal an e number |
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