You are either a total genius or else you must be totally crazy.

你要么是个纯粹的天才，要不然你准是完全疯了。

《柯林斯英汉双解大词典》

They show either a lack of enthusiasm or an excess of it.

他们要么表现出缺乏热情，要么表现出过度热情。

youdao

youdao

Until nineteen seventy-three, most telephone calls were made either at home, at a business or in a vehicle.

VOA: special.2010.11.26

So either a potassium cyanide or sodium cyanide, these are used in synthesis in terms of making carbon-carbon bonds.

因此无论是氰化钾还是氰化钠，都被用来在合成过程中,制造碳碳键。

麻省理工公开课 - 化学原理课程节选

It was either a hundred years or eight...

可能是一百年或者八……

艺术画廊，来吧 - SpeakingMax英语口语达人

There is only the prospect of Americans suffering through either a deflationary depression or hyperinflation.

FORBES: An Inflationary Death Spiral

"I looked into bringing either a basketball team or a hockey team to Nashville, " Leipold explains.

FORBES: Mario Lemieux, Value Investor

In such circumstances, economics suggests two possible remedies: either a devaluation, or a modest fiscal stimulus.

ECONOMIST: Aid for Argentina