音标：[,pɔli'^æstrik] ；

[动]多胃的

a. Having several bellies; -- applied to muscles which
are made up of several bellies separated by short tendons.
a. Pertaining to the Polygastrica.
n. One of the Polygastrica.

SSS 2012-08-20

This is scientific American sixty seconds science. I am Amy Kraft. Got a minute? Sweat potatoes contains fiber, vitamin A and calcium, but the way that scientists think they can make them even more healthful is literally shocking. Researchers found t

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biareolate