The "saber-toothed squirrel" study was published today in the journal Nature.
“剑齿松鼠”的研究现已发表于《自然》杂志。
A soldier came up to her with a drawn saber.
一个士兵拔出马刀向她走来。
When the film was played back, the saber blade would magically appear.
当电影回放时，剑刃就神奇地出现了。
When the film was played back, the saber blade would magically appear.
当电影回放时，剑刃就神奇地出现了。
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