"Lots and lots of companies from overseas, especially from China, selling very cheap products, that users can have in order to recharge their cell phones or small devices, that run on solar energy or wind energy."

VOA: special.2011.01.10

It has to be small, and it has to be lipid soluble in order for it to pass through a cell membrane.

这些分子必须非常小,而且必须是脂溶性的,才能穿过细胞膜

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