It can't enter cells because it's too big and it's too water soluble so it can't go through cell membranes.

它的分子太大了所以无法进入细胞,而且还是水溶性的,所以它也无法穿过细胞膜

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So it is very international and it's getting bigger and better.

所以这里很国际化，而且这儿正变得越来越大，越来越好。

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