求翻译：1.本合同自签字盖章之日起生效，双方共同遵守。除不可抗拒的原因，任何一方违反其在本合同项下的承诺、保证及义务，即视为对本合同的违约行为。是什么意思？

1 This contract shall take effect from the date signed and sealed, both sides adhered to. In addition to force majeure, either party breach of its commitments under this contract, guarantees and obligations, shall be deemed a breach of this contract.

1. this contract from signs and seals the date activation, both sides observe together.Except that the irresistible reason, any side violates it in this contract item of under pledge, the guarantee and the duty, namely regards as to this contract violation behavior.

1. with effect from the date of signature of this contract, both parties to respect it. In addition to compelling reasons, any party in violation of its commitments, guarantees and obligations under this contract shall be deemed to breach to this contract.