网友的问题，可以参见龙老师的一个解答，很详细：

https://www.cpsenglish.com/question/1773

另补充例句如下：

He slipped into the balcony without anyone noticing him. 他偷偷溜到阳台上，根本没人注意到他。

The mother came alone without anybody accompanying her. 母亲独自回来了，没人陪伴她。

The war was over without a shot being fired. 战争没有一枪一弹就结束了。

They had passed without a single word spoken. 他们一句话也没说就过去了。

Without any grain left in the house, she had to go begging.家里没有粮食了，她只好去乞讨。

Without anybody to call her, she would most probably be late.如果没人叫她，她多半会迟到。

He wandered in without shoes or socks on. 他没穿鞋袜就溜达进来了。

Without a tear on her face, the girl watched him led away. 女孩看着他被带走，脸上没有一滴眼泪。