卖方应依照合同的约定供应货物并自大费用供应—切出口许可证或其他办理货物出口所必需的官方许可。

The seller should supply the goods in accordance with the contract and provide at his expense any export license or other governmental authorization necessary for the export of goods.

买方必须自担风险和费用，取得任何出口和进口许可证或其他官方许可，在需要办理海关手续时，并办理货物出口的一切海关手续。

The buyer must obtain at his own risk and expense any export and import licence or other official authorisation and carry out, where applicable all customs formalities for the export of the goods.

如果有人想把自己的户口迁出，一定要先获得官方许可，而这在目前几乎是不可能的。

If people want to move outside their birth hukou, they need official permission, which was virtually impossible to get before liberalization.

此次抗议没有得到官方许可，500多人因此被抓。

The protest, not licensed by authorities, led to the arrest of more than 500 people.

问题的源头在于这个临时升降吧台的主题未得到官方许可经营。虽然它看上去很酷，但是不幸的是其中牵涉了一些知识产权问题。

So much so, it was the theme behind their (unauthorised) pop-up bar. Granted, it looks amazing, but sadly there are some intellectual property issues too.