I need to go to the bathroom.
我必须上趟厕所。
I have to answer the call of nature.
我得上厕所。
I need a rest stop.
停车，我要上一趟卫生间。
Time for a pit stop.
停一会儿车，以便大家上厕所。
How long can you wait?
你还能忍多久？
Is it an emergency?
紧急吗？
