| 词汇 | groan |
| 词根词缀 | 词源： O.E. granian "to groan, murmur," from P.Gmc. *grain-, of imitative origin, or related to grin (cf. O.N. grenja "to howl"). 词根记忆： v. /n.呻吟The man gave a groan of pain.那人发出痛苦的呻吟声. |
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