1. go off

离开；进行；变质；睡去

eg. So Im raised in this environment, and I go off to college.

因此，我就是在这种环境长大的。 后来，我上大学去了。

eg. She added that mango and avocado also worked, "but they are most expensive and go off more quickly".

她补充道，芒果和鳄梨也能引来锹虫，“但它们很贵，而且很快就会变质。”

2. curl up

卷起；蜷缩

eg. The smoke was choking me, I was curled up in pain on the bed, and I didn't know what was happening.

那股烟呛得我气都喘不过来.躺在床上,我痛苦的蜷缩起来,根本不知道这到底是怎么回事。

eg. If there are extra dimensions they might be very, very small – little curled up dimensions" that would not be visible in our macroscopic three-dimensional space, Pretorius told LiveScience.

如果有额外维，它们可能会极为极为微小 - 在我们的宏观三维空间里不会看到这样微小的蜷缩维度”，普里托里厄斯告诉《生活科学》。

3. because of

因为；由于

eg. It is mainly because of my fault.

这主要是由于我的过错。

eg. His business went under because of competition from the large corporations.

由于大公司的竞争，他的生意陷入了困境。