等声音停止了，我听见他在楼下走来走去，不知道在做些什么。
When it stopped, I heard him moving around downstairs and wondered what he was doing.
我开始在外面混日子，不知道自己在做些什么
I started pottering around outside, not knowing what I was doing.
我都不记得生活中是否有过给复活节彩蛋染色，所以周末和孩子们一起给鸡蛋染色的时候，我完全不知道自己在做些什么。
I don't ever in my life remember dyeing Easter eggs. So the kids and I did it over the weekend and I had no clue what I was doing.
她又不知道我在芝加哥真正在做些什么。
他不知道他的敌手在做些什么。
如果人们不知道你在做些什么，他们就不会知道你做错了什么。
If people don't know what you're doing, they don't know what you are doing wrong.
如果人们不知道你在做些什么，他们就不会知道你做错了什么。
If people don't know what you're doing, they don't know what you are doing wrong.
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