你上WC这么久?怎么译成英语

why did you stay in wc for such a long time

why do you hog the washroom such a long time?
hog sth 占有某物
从洋话连篇学的
Don't hog the bathroom. 这是原句，是叫别人不要霸着厕所的。

WC on you so long

So long did you go to John.
Go to John就是上厕所的意思,WC这个词太不雅了，相当于茅坑

Ages since you went to the WC!!!

It's been a while