英语翻译我愿意长期向您购买靴子,数量比较多的情况下,价格及运输费用上微小的变化会造成我这成本的增加,希望您能提供更便宜的

英语翻译
我愿意长期向您购买靴子,数量比较多的情况下,价格及运输费用上微小的变化会造成我这成本的增加,希望您能提供更便宜的价格和更经济的运费,另外您是否能提供其他型号比如“”“”,
多件运送到中国的费用是多少?

Hi!
I would like to purchase your boots.If I buy a lot,very tiny change in prices and shipping would add up to a big cost increase on my end.So for me to make a profit,I was wondering if you could offer me some discount,like a lower price than retail and more economic shipping.Besides,could you please send me pricing for other models such as AAA,and BBB?
I appreciate your kind gestures.
BTW,what's the shipping cost for shipping (多少件) to China?
译注：一些美国商人会根据不同的抵达港收不同的运输费用
祝你达成这笔交易