✔ 最佳答案
acquaintance
根據 Webster online dictionary:
Acquaintance: a person whom one knows but who is not a particularly close friend
2007-10-09 19:20:19 補充:
Nothing offensive. For discussion's sake, 香港人喜歡用Common friend來形容普通朋友,但老外所指的common friend,是指我和你都識的朋友,common 在這裡是共同咁解,而唔係普通。唔信可以打『common friend』 search下外國網頁。