If I can't make a living at painting, at least I can teach someone else to paint...

如果我不能靠画画谋生，至少我可以教别人画画。

We had nothing else to do on those long trips...

在那些漫长的旅程中我们没有别的事情可做。

As I try to be truthful, I expect everyone else to be truthful...

既然我努力做到诚实，我希望其他所有人也能诚实。

Cigarettes are in short supply, like everything else here.

和其他所有东西一样，这里的香烟也供应不足。

He must be a good plumber, or else he wouldn't be so busy...

他肯定是个不错的管子工，要不然他不会那么忙。

Evidently no lessons have been learnt or else the government would not have handled the problem so sloppily.

政府显然没有吸取教训，不然不会把问题处理得那么草率。

This time we really need to succeed or else people will start giving us funny looks...

这次我们真的需要成功，否则人们会开始用异样的眼光看我们。

Make sure you are strapped in very well, or else you will fall out.

一定要系好安全带，否则会摔出去。

You are either a total genius or else you must be absolutely raving mad...

你要么是个不折不扣的天才，要么就是完全疯了。

It's likely someone gave her a lift, or else that she took a taxi.

可能有人开车捎了她一程，要不就是她打了辆出租车。

Above all else I hate the cold.

我最讨厌寒冷。

You can say 'if nothing else' to indicate that what you are mentioning is, in your opinion, the only good thing in a particular situation.

(表示唯一的好情况)起码，至少

If nothing else, you'll really enjoy meeting them.

至少你一定会很高兴见到他们。

Behave, or else!...

规矩点，否则的话，哼！

He told us to put it right, or else.

他让我们纠正错误，否则后果自负。