We know that only by working together can our two countries solve the issues and the challenges facing each of us. U. S.

我们知道，只有共同努力，我们两国才能解决那些我们各自面临的问题和挑战。

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"We know only about thirty-three percent of women have access to a program that actually has services in place to prevent mother-to-child transmission.

VOA: special.2009.07.29

We need to know not only what are the primitives, but how do we make things meaningful in that language.

我们不仅需要知道什么是基本类型，还要知道我们在那种语言中,怎样使其变得有意义。

麻省理工公开课 - 计算机科学及编程导论课程节选

Then we realize once again that we can only know what it is if we come to understand--in this case, probably, it's best to say a cultural system, understood as a semiosis, within which it appears.

这样我们就又明白了,只有在一个特定的文化系统中,我们才能认识一个符号。

耶鲁公开课 - 文学理论导论课程节选

When firms compete for the right to obtain access to more spectrum, we know that only the one most confident in its ability to provide a valuable service to consumers will augment its bid.

FORBES: Time For The FCC To Auction Off More Wireless Spectrum

In 2010, Mitt Romney's tax rate bobbed and weaved its way below 15% -- and we know that only because the public had to pry his return (he has released only a full one) out of his clenched hands.

CNN: Mitt Romney vs. stubborn facts

We know that the only rational objective for most long-term investors is to earn a real total return after taxes and inflation.

FORBES: The Case For Higher Stock Prices After Tax Increases