Before traveling in a city you are not familiar with, you should learn the local customs first.

在去一个不熟悉的城市旅游之前，你应该先了解当地的风俗习惯。

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Observe and take in the culture and customs first.

要善于观察，首先要了解当地的文化和习俗。

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When we enter a country, we have to get through customs first.

当我们进入一个国家时，我们必须先通过海关。

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And it has an edge: it embraced new technology early on, being one of the first to computerize customs clearance and other port operations.

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The General Administration of Customs, while announcing the first quarterly trade deficit since the first quarter of 2004, blamed rising prices for boosting imports.

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Or the first joint police-customs unit, painstakingly put together in the late 1980s but also short-lived?

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