Leave the gas on at the main valve, unless you smell gas or think it \ 's leaking.

除非闻到煤气味或认为煤气正在泄漏，不用关掉煤气阀门。

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Back in the mid to late 80's, an IBM compatible computer wasn't considered a hundred percent compatible unless it could run Microsoft's Flight Simulator.

早在80年代中期。除非一台IBM兼容机能够运行微软的模拟飞行，否则它的兼容性就不能被100%的肯定。

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U. s. policies encouraged over-consumption and over-borrowing, and unless we understand where these policies came from, we have no hope of addressing the causes of this crisis.

美国政策鼓励过度消费和过度借款，除非我们明白这一政策从哪儿来，我们就不要指望能找出这次危机的真正原因。

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"The mainstream media does not usually cover poverty or homelessness too much, unless someone dies or there's a big rally or something."

VOA: special.2011.02.25

So, inside of code, or inside of a script, there's no print, unless we make it explicit.

因此，在代码里面，或者在脚本里面，不会有显示结果的功能，除非我们让它这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

Or vaccines that could be transported more easily— the hepatitis vaccine that we get is not stable unless it's refrigerated.

或者令疫苗更易于运输,现在的肝炎疫苗一定要冷藏,否则它就不稳定

耶鲁公开课 - 生物医学工程探索课程节选

Investors have already bid Ford shares up in recent weeks in anticipation of an accelerated turnaround plan, so unless there s some surprising news, the announcement will likely disappoint.

FORBES: Ford's Big Buyouts

Finally, active partners don't owe the 3.8% tax on their share of a partnership's business income, unless it's from trading financial instruments or commodities, says Monte Jackel, a tax expert in Silver Spring, Md.

WSJ: Are You Ready for the New Investment Tax?

And that's precisely the point: Unless Sotomayor's opponents can succeed in using her judicial record to portray her as a passionate, wild-eyed judge who depends more on emotion more than legal precedent, they're in for a tough time.

CNN: Borger: 'Empathy' not a dirty word for a judge