自行決定訂購數量
Dear Mr. Chen,
致陳先生：
Thanks for your inquiry regarding our products.
感謝貴司來函詢問本公司的產品。
We have enjoyed working with Mr. Bowen as well, and his kind remarks are gratefully received.
本公司與鮑文先生的合作亦相當愉快，在此由衷感謝先生美言。
enjoy N or V-ing=享受做某事remark(n.)(v.)(作出)評論
As per your request, I have attached the latest catalog of items that may be purchased in large or small quantities.
按照貴司請求，隨信附上最新商品型錄，訂購數量可自行決定。
attach(v.)附上attachment(n.)附件
Along with it, kindly find the promotional material for the upcoming sales as well as the contact information for Jacqueline Chiu, the Regional Sales Manager.
此外，附件還包括下一檔促銷活動的宣傳資料，以及區域銷售經理賈桂琳·邱的聯絡資訊。
promotional(adj.)促銷的
In light of your expressed interest, Ms. Chiu will contact you no later than this Friday.
鑑於您提到的批量採購事宜，邱女士將會在本週五以前與您聯繫，
in (the) light of=because of
She will directly speak to you about the bulk purchases you have mentioned.
她會直接與您洽談批量採購的各項細節。
speak to sb. about sth.=跟某人談某事bulk purchase=批量採購
As a token of appreciation, your first order will receive an extra 10% off on top of the volume discount.
為感謝貴司支持，首筆訂單除了享有批量折扣以外，可另享九折優惠。
token(n.)象徵;標誌;代幣appreciation(n.)感謝on top of=除了…之外
Priding ourselves on providing affordable products of premium quality, we are looking forward to establishing a long-term business relationship with you.
庫柏電器批發商一向以提供物美價廉的優質產品而自豪，期待與您建立長期業務合作關係。
pride oneself on sth.=為…感到自豪affordable(adj.)負擔得起的establish(v.)建立;設立;創立
Regards,
致上問候
Kyle Rosenberg
凱爾·羅森伯格
Customer Relations Specialist
客戶關係專員
Cooper Electronics Warehouse
庫柏電器批發商