He's a good politician. There are people who know how to sell ice to Eskimos.

他是个好政治家。有些人很圆滑，有说服力。

He's a good politician. There are people who know how to sell ice to Eskimos. He's one of them.

他是个很棒的政治家。如果有人知道如何向爱斯基摩人出售冰块的话，那他就是其中一个。