英语翻译：我将要离开上海大约3天。

问题描述：

问题解答：

I am going to leave Shanghai for about 3 days.

I'll be out of Shanghai for three days.
I'm leaving Shanghai for three days.

I will be off Shanghai for three days.

I'm going to leave Shanghai for three days.
I'm leaving Shanghai for three days.

I will be off Shanghai for around 3 days.

I will be out of Shanghai for three days.