The pterosaurian egg doesn′t show any structures of the hard shell, indicating that it may be soft-shelled too.
翼龙类蛋化石没有显示硬壳结构，很可能同样为软壳蛋。
T: Show me your pictures and introduce your family to us, please.
先在小组内展示、介绍，然后再向全班学生介绍你的家庭。
T: Show me your pictures and introduce your family to us, please.
先在小组内展示、介绍，然后再向全班学生介绍你的家庭。
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