Harry wandered over to the Restricted Section.

哈利不知不觉来到禁书区。

Such sudden alternations from mental vacuity do sometimes occur thus quietly.

空虚的心灵有时就是这样不知不觉地发生这样的变化。

Then, suddenly, he came to a river.

不知不觉，他来到了一。

I'm five hundred miles away from home.

不知不觉我便已离家五百英里。

And before I knew it, the backyard was full of animals.

不知不觉，后院里就全是动物了。

This little one will be here before you know it.

这小家伙不知不觉就出来了。

One option is going to start pulling ahead and without realizing it.

一种向在不知不觉中开始占据优势地位。

We unconsciously think that eating will wake us up.

我们常不知不觉地认为吃东西可以提神。

Many of us are pen pals without even knowing it.

很多人在不知不觉中就成了笔友。

Other birds unknowingly carry seeds that cling to them for the ride.

其它鸟类在不知不觉中携带了粘附着它们的种子。

Without realizing it, we are deeply affected by other people's moods.

在不知不觉中，我们深受他人情绪的影响。

Native speakers do this all the time without even realizing it.

母语使用者总是在不知不觉中这样做。

The dusk shaded into night while I was driving home.

我开车回家时，不知不觉暮色已转为黑夜。

Somehow, the end of term had crept up on us.

【creep】不知不觉又到学期末了。

Before you knew it, the monkey garden became filled with sleepy cars.

不知不觉，猴子花园里充满了沉睡的汽车。

If I'm hyperfocused, hours can fly by before I know it.

如果我过度专注，不知不觉几个小时就过去了。

Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

有人不知不觉地以事实牵强附会地来适应理论，而不是以理论来适应事实。

She had no jacket, and crept close to Clare.

她没有穿外套，不知不觉地偎近了克莱尔。

Then I begin to weep, but the tears dry again unawares.

然后我便开始哭泣，又不知不觉眼泪已哭干。

It's like building your vocabulary without even trying.

就好像不知不觉中，你的词汇量就增加了。