We have to decide what to do. (我们得决定什么做。)

That's the hard part. (这正是难点。)

That's the difficult part.

我感到内疚。

I feel guilty. 有罪恶感。

I feel guilty. I was mean. (我太刻薄了，我感到很内疚。)

Don't worry about it. (不必为那事担心了。)

I feel bad about it. 虽然很在意，但还不致于有罪恶感。

I feel horrible.

It's all my fault. (都是我不好。)

I feel terrible.

你看来很困惑。

You look puzzled. puzzle “使……窘困”、“使……糊涂”。

You look puzzled. (你看来很困惑。)

I can't understand this machine. (我弄不明白这台机器。)

You look confused. (你看上去很困惑。)

那个念头总是萦绕着我。

The idea haunts me. *haunt “不断缠绕在心头的”、“萦绕在脑海中的”、“使心烦的”。

I can't get rid of the idea.

I can't get it out of my mind.

熟能生巧。

Practice makes perfect. 任何事情都反复练习是成功的秘诀。

历史总在重演。

History repeats itself.

Another war started. (又一场战争开始了。)

History repeats itself. (历史总在重演。)