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An in-depth guide to features of the LESS language. See the Overview for a quick summary of Less. For an in-depth guide to installing and setting up a Less environment, as well as documentation on developing for Less, see: Using Less.js.
Americans who spend at least five hours a day on social media are more likely to feel heard, but also more open to political violence and less supportive of democracy, according to a major new poll ...
Discover 25 Social Media Facts That Will Make You Question Everything you know. Uncover shocking stats on users, psychology, and impact. See how social med ...
The string I don't know that is grammatical and common and is used to express doubt. The use of subordinators if or whether after know would suggest a less firm position: he doesn't know or he's not so certain. I don't know that there are bargains yet, but there certainly are opportunities. I don't know that the President has said that he fully supports the conference of the states I don't ...
Examples: I know (about) this difficulty/problem. I know (about) Engineering. In the first sentence, it seems to me that "to know" expresses that the speaker experienced the problem/difficulty before while "to know about" only expresses that the speaker has heard or read about it.