You can have coffee or tea.你可以喝咖啡或是茶。

Would you like beer, wine, or something else?你想喝啤酒、葡萄酒，还是其他什么？

He must be her brother—or is he? [=maybe he is not her brother]他肯定是她的哥哥——或者不是？

We couldn't stop or even slow down the whole time. [=we could not stop and we could not slow down]我们在整段时间中不能停下，甚至也不能减速。

They have no food or water. [=they do not have food and they do not have water]他们既没有食物也没有水。

Finish your dinner or you won't get any dessert. [=if you do not finish your dinner, then you will not get any dessert]把晚饭吃完，否则就不给你吃甜品。

Be at the station by 5 o'clock or you will miss the bus.*5点钟前到达车站，不然你就赶不上公共汽车了。

It's been two or three years since I've seen her.我已经有两三年没见到她了。

The package should arrive in five or six days.包裹应该五六天后到达。

We waited for an hour or more.我们等了有一个小时或更久。

He must be hiding something or he wouldn't be lying. [=he would not lie if he were not hiding something; the fact that he is lying means that he must be hiding something]他肯定是在隐瞒一些事情，要不他不会撒谎的。

Botany, or the science of plants, is a fascinating subject. = The science of plants, or botany, is a fascinating subject.植物学，也就是研究植物的科学，是一门迷人的学科。

This pan is used for sautéing, or frying, the vegetables.这种锅是用来炒或者说油煎蔬菜的。

We got here quickly—or more quickly than last time, anyway. = We got here quickly—or at least more quickly than last time.我们很快就到这儿了——或者说至少比上次快。

The building is 500, or to be precise, 502 years old.这栋大楼已有500年的历史了，或者更精确地说，是502年。

She breeds rabbits, or rather hares.她饲养兔子，或者更准确地说，是饲养野兔。