If by now your head is spinning with all the tricks, terminology, and details relevant to the fight against Web spam, you get a sense of the seriousness and difficulty of the issue.

如果此时，您的脑海里尽是与抵御Web垃圾信息相关的这些技巧、技术和方法，那么您就对问题的严重性和困难程度有了大致的概念。

youdao

If he started out at nine, he ought to be here by now.

他如果九点出发，现在应该到这里了。

《牛津词典》

If you think about it, those children must be at school by now.

想想吧，那些孩子现在一定在学校了。

《牛津词典》

He says if it was not for her famous father the military government would probably have executed her by now.

VOA: standard.2009.06.19

false It's going to return true if it's a PAIL-indrome and false if it's a PAL-indrome. And it says true. Now maybe you're bugged by this.

如果不是会问的话则是,返回的是真值,那么你可能会觉得这个很烦。

麻省理工公开课 - 计算机科学及编程导论课程节选

So again with the Gibbs free energy, now I see how to determine, if I change the pressure, if I change the temperature by some modest amount, how much is the Gibbs free energy going to change?

再一次通过吉布斯自由能，我知道当我，适当的改变压强和，温度的时候，吉布斯自由能如何变化？

麻省理工公开课 - 热力学与动力学课程节选

Above is one of the government advertisements that we would have seen if it had happened by now.

BBC: Pandemic flu advert revealed by Department of Health

Last but not least, Turkish peacekeeping forces would have been withdrawn by now if the Greek-Cypriots had voted for the Annan Plan.

ECONOMIST: Letters: On China, Brazil, Turkey, Cyprus, geoengineering, ballot initiatives, the Walkman, David Cameron, Germany, surpluses, Cuba | The

Mr. Obama suggested in a recent interview with NBC that Mr. Hayward would have been fired by now if Mr. Obama was his boss.

WSJ: BP Weighs Dividend Cut