The transport of proteins and lipids between eukaryotic cells via endocytosis and secretion is mainly facilitated by vesicular trafficking.

真核细胞的内吞和分泌途径中蛋白质和脂类的运输主要由膜泡运输介导。

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Thus, we need -- as is being proposed -- to toughen the laws on "straw man" purchases and firearms trafficking and to make it a federal crime to transport a gun into a state where possession of that gun would be illegal.

CNN: Did we learn nothing from Newtown?