| 单词 | ineffectual |
|---|---|
| 音标 | [`ini'fektjuəl] |
| 解释 | a.无效的,徒劳无益的 |
| 红宝书 | 无 |
| 字源 | ineffectual (adj.) early 15c., from in- (1) "not, opposite of" + effectual. Related: Ineffectually; ineffectuality. |
| 不择手段背单词 | 无 |
| 趣味全助记 | 无 |
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