7. We're in a position to accept small quantity order. 我们接受小定量订单。
be in a position to... 可以做某事
8. We look forward to the opportunity of being of service of you.
①look forward to doing/sth. 渴望收到
②be of service of sb. 为某人服务
9. If we can be of any further help, please let us know.
如果我们能帮到您什么忙，请尽管说。
① be of help=helpful 乐意帮助的
② please let us know 在和客户/上级沟通的时候，直接的please let us know 即可，不必要please feel free to let us know. 显得很不严谨和唐突。
10. We find the quality suitable for your market. 产品质量符合你们的市场。
①find sth. adj. 形容词 表示发现什么怎样
②suitable for 适合
11. We send you a brochure on the various kinds of bicycle now available for export, your inquiry is welcome.
我们寄给您我们产品目录，上面有各种各样可供出口的自行车款式，均有货，欢迎垂询。
①various 各种各样的 = a variety of
② available for export 固定搭配，可供出口的
12. A catalog has been airmailed to you already.
被动语态表达，我们已经为您空邮了一份产品目录。
airmail 空邮
类似的词汇可以用dispatch by courier来表示寄送
13. Any items listed in the catalog you get interested in, please let us know.目录中任何你感兴趣的产品，都可以告知我们。
listed in the catalog 短语后置作定语修饰any items 表明目录中列及到的产品。比If you get interested in any items listed in the catalog会更加精炼
