Amendents modifying or extending the Contract shall be binding upon both parties only if in writing and signed by a duly authorised officer or representative of each party.

对合同所作的修改或扩充，只有采取书面形式并经双方正式授权的主管人员或代表签署后，方能对双方有约束力。

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"Government-authorised piracy would undermine chances for a settlement, " said a spokeswoman for the US Trade Representative's office.

BBC: US warns Antigua and Barbuda over 'piracy site' plan