intransitive. spec. To move through water alternately surfacing and submerging.
单词 | θ107102 |
释义 | the world > movement > progressive motion > moving with current of air or water > movement in or on water > move in or on water [verb (intransitive)] > move alternately above and below surface (1) porpoise1939 intransitive. spec. To move through water alternately surfacing and submerging. |
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