[例] She was employed as a bank maintenance clerk after her graduation.
client (n.) person or company buying a service客户
[例] Nowadays good service is a very important aspect to the bank’s clients.
clientele (n.) a body of customers or patrons 顾客（总称）
[例] a restaurant’s clientele
Co (n.) abbreviation for company“公司”的缩写
cold (adj.) not approached before 冷不防的
[例] He gave me a cold call this afternoon but we didn’t have any appointment.
