Meaning
or
either one or the other
Examples
仍有在孩子熟睡后仍难以入眠的父母，他们担心如何偿还按揭月供、付医药费或是存够钱让孩子上大学。
仍有在孩子熟睡後仍難以入眠的父母，他們擔心如何償還按揭月供、付醫藥費或是存夠錢讓孩子上大學。
There are mothers and fathers who will lie awake after the children fall asleep and wonder how they'll make the mortgage, or pay their doctor's bills, or save enough for their child's college education.
你可以拿大的盒子或是小的盒子。
You may take either the big box or the small one.
所有史蒂夫的工作不是無聊就是非高薪或是兩者兼而有之。
All of Steve's jobs were boring or not well-paid or both.
在美国，当你进入餐厅时，你可选择坐在吸烟区或是禁烟区。
在美國，當你進入餐廳時，你可選擇坐在吸菸區或是禁菸區。
In the U.S., you have the option, when you enter a restaurant, to sit in the smoking or non-smoking section.
我们在书中认识的人可以带给我们愉悦或是他们与我们生活中挚爱的朋友相似，或是因为他们是我们所不熟悉却乐于结识的人。
我們在書中認識的人可以帶給我們愉悅或是他們與我們生活中摯愛的朋友相似，或是因爲他們是我們所不熟悉卻樂於結識的人。
The people we meet in books can delight us either because they resemble the friends we hold dear in real life, or because they are unfamiliar people that we are pleased to get to know.