To move (wings, etc.) heavily and loosely up and down.
单词 | θ106202 |
释义 | the world > movement > motion in specific manner > alternating or reciprocating motion > move to and fro or up and down [verb (transitive)] > flap or beat up and down > heavily (1) flop1859 To move (wings, etc.) heavily and loosely up and down. |
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