They've promised to keep both we quality and the quantity of the 300 bicycles in conformity with the contract stipulations.
他们已承诺那300辆自行车的质量和数量一定与合同规定相吻合。
Of course.You can pay a deposit of thirty pounds, and then fourteen pounds a month for three years.
当然可以。您可以先付30英镑定金,然后每月14镑,3年付清。