求翻译：关税作为一个国家的收入之一，并不是很低，很多国家都设有非常高的关税。所以，在跨国网购的时候，消费者必须清楚的计算货物的价格和关税来避免吃亏。是什么意思？

Tariffs as one of a country's income, not low, many countries have a very high tariff. So, when the cross-border online shopping, consumers must clearly calculate the price of the goods and tariffs to avoid disadvantage.

Customs as a single state, one of the income is very low, and not a lot of countries have very high tariffs. Therefore, in the cross-network, consumers must be aware of computing the price for the goods and customs to avoid losses.

The customs duty took one of national income, is not very low, very many countries all are equipped with the extremely high customs duty.Therefore, buys in the transnational net, the consumer must the clear computation cargo price and the customs duty avoids suffering a loss.

One of the tariff revenues as a nation, is not very low, many countries have very high tariffs. Therefore, when cross-border online shopping, consumers must have a clear calculation of prices and tariffs for goods to avoid suffering.

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