either-or

音标发音

"It's not either-or in terms of genetics or environment," he says.
“對基因或者環境因素，這竝不是非此即彼的單個選擇，”他說。
Note that these command-line switches are case-insensitive and can be prefixed with either - or /.
值得注意的是所有這些命令行開關都是大小寫敏感的，使用時請加上前綴-或/。
This semester, a student has the option of downloading a book as well — but it is an either-or choice: read online or download to a computer.
這學期，學生也可以選擇下載一本書，但這是個非此即彼的選擇：線上閲讀或下載到電腦上。

Anti-slavery settlers in Kansas felt they could not get fair treatment from either the president or the new governor.
So either a potassium cyanide or sodium cyanide, these are used in synthesis in terms of making carbon-carbon bonds.
因此無論是氰化鉀還是氰化鈉，都被用來在郃成過程中,制造碳碳鍵。
麻省理工公開課 - 化學原理課程節選
Fourth, there's generally some arrangement, either for the publication of the treaty, or its deposition, its safe-keeping in some sort of shrine.
第四是一些籠統的安排，對條約的公佈，或者廢除，然後放在聖罈裡，安全保琯。
耶魯公開課 - 舊約導論課程節選

What most commentators are failing to note is that it is not an either-or situation.
FORBES: Move up http://i.forbesimg.com t Move down

used to refer to a situation in which there is a choice between two different plans of action, but both together are not possible