are you here on business or（ ） fun

d

for fun 意思为玩乐

d

选d呀 for fun 表示在玩 整句是你是在工作还是在玩

D for

for fun

adv. 开玩笑地(不是认真地)

例句与用法:
My mother entered the local flower show just for fun and got a first.
我母亲仅仅因好玩而参加了本地的花卉展，结果得了第一名。
Did you come up just for fun?
你来只是为了消遣吗？
Although he had only entered the contest for fun, he won first prize.
尽管他参加这次竞赛只不过是闹著玩儿而已, 却赢得了头奖.
I am not saying it for fun.
我说这话并不是在开玩笑。