The problem is there's no alternative.

问题是没有什么选择。

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Well water should be treated, but there's no alternative — we don't even have faucets and plumbing in the house.

井水需要进行处理才能喝，但我们别无选择-我们屋里根本没有水龙头和自来水管。

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Psychologists are acutely aware of the fact that people don't always tell the truth, or even know what's going on in their own heads, but sometimes there's no alternative.

心理学家发现人们并不总是说实话甚至不知道他们自己在想什么，但有时没得选。

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Now the number one reason, and we have to acknowledge it up front, is usually economically there's no alternative or people believe there's no alternative.

首要原因，我们必须承认，通常是因为，经济上没有其他选择,或者人们认为别无选择。

耶鲁公开课 - 心理学导论课程节选

And since there's no alternative energy major,

但是没有新能源这个专业，

学习化学专业的原因 - SpeakingMax英语口语达人

He also talks to venture capitalists and looks for what he calls "bottlenecks": technologies that must grow because there's no ready alternative.

FORBES: Magazine Article

There's no other alternative in this environment.

WSJ: One Sure Formula for Controversy

Unlike Europe, we have better prospects for growth, since there's really no sustainable alternative for our society.

FORBES: New Geographer