oar neck
... slope oar 斜划桨 oar neck 桨颈 oar propeller 机械桨 ...
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... muffled oar 消声桨 neck of oar 桨颈 oar blade 桨叶 ...
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实际上，看起来有些像海豚的鱼龙，和纵然有长颈和菱形状脚桨的蛇颈龙都不与如今存活的物种相似。
Ichthyosaurs, indeed, looked somewhat like dolphins, though plesiosaurs-with their long necks and diamond-shaped paddles-were unlike anything now alive.
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