或是

• (conj) either X or Y

例句

1. 他说他没有时间，或是诸如此类的藉口。
   He said he hadn't got time or made some such excuse.
2. 现在吃或是等一会儿再吃对我来说都一样。
   It's all one to me whether we eat now or later.
3. 我们或是寻求供货，或者自己制造。
   Either we will find a supply, or we will make the goods.