Although China and Saudi is thousands of kilometers away, the people in both countries have intercourse since long ago.

中国和沙特虽相距数千公里，但两国人民早有来往。

I have never had sexual intercourse with her and that is the truth.

我从未与她发生过性关系，而这是事实。

That's because they have all the words and phrases they need for everyday intercourse and aren't being pushed by frustrated communication to learn more.

因为他们现有的词汇已经足够应付日常交流，除非交流上真的有更多困难，他们很难再多学下去。

And Ms. Lewinsky's statements to some that she did not have intercourse with the President, even though she wanted to do so, enhances the credibility of her statements.

CNN: There is Substantial and Credible Information that

At any age it was entirely acceptable and indeed much more the rule than the exception for a man to have intercourse with a woman without having to concern himself with whether conception might occur.

NPR: One Boy's Heroism in the Face of AIDS

In Renaissance Italy, it turns out, there was no end of advice as to how to get them: would-be parents of sons should eschew strong drink, endure abstention to build up their strength and then have intercourse early in the day.

ECONOMIST: Renaissance advice books