帮忙翻译以下几句合同条款 ,谢谢
1.??no less than 3 days before shipment.
2. Sunrise(company name) is allowed to bear the transport costs by providing additional cost free new cameras in actual technical system.
3. Every party can cancel this contract only by important reason. An important reason is for example,??quality is so bad, that min. 5% of the delivered cameras he to be repaired or when payment is not made during 4 weeks after order at 2 orders within 6 months or one party hurts the secret agreement and so on.
谢谢各位了[收起]