| 单词 | porpoise diving |
| 释义 | > as lemmasporpoise diving porpoise diving n. ΚΠ 1905 Westm. Gaz. 26 Aug. 9/2 The ‘Plunger’ was put through her paces at porpoise diving, ascending repeatedly to the surface, long enough to get her bearings, and immediately disappearing again. 1910 Chambers's Jrnl. June 368/1 Coming to the surface at intervals to sight, and then quickly sinking again. This operation is called by the Americans ‘porpoise diving’. < as lemmas |
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