You want to ask to use the restroom as politely and as softly as you can.

你想要尽可能礼貌委婉地请求使用洗手间。

I wonder if 课堂 - SpeakingMax英语口语达人

you must step out to go to the bathroom for a second.

你还是得暂时离开一会儿，去一趟洗手间。

I will 课堂 - SpeakingMax英语口语达人

and you really need to use the restroom.

你得去下洗手间。

I wonder if 课堂 - SpeakingMax英语口语达人