beltloop
成体、幼仔的耳骨大小和形状都基本一样，表明耳骨的生长和发育与头骨的发育是非同步的。
There is no big difference between the ear bones of mature dolphins and newborn dolphins in size and shape, which indicates that the development of ear bones is non-synchronous as that of the sk…
youdao
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