We have every reason to cancel the contract because you've failed to fulfil your part of it.
我们完全有理由取消合同,因为你们没有完成应遵守的合同内容,履行合同。
After a little time, she chose one of the most expensive dresses in the shop and handed it to an assistant who wrapped it up for her as quickly as possible.
过了一会儿,她又选了商场里最昂贵的一件衣服,把它递给了售货员。那售货员以最快的速度为她包好了衣服。