当 know 表示通过其它途径了解或确信该种情况时，to 不能省略。 例如，当你说 I have (never) known Bill have a tantrum ，你 …
本文介绍了know sb/sth be/do的不同用法和区别，包括主动式、被动式、完成式、不定式等。还提供了一些例句和高考英语相关的问 …
If something or someone is known to be or do something, people know that it is true or happens, or that someone is or …
If something or someone is known to be or do something, people know that it is true or happens, or that someone is or …
在本文中，我们将探讨这个短语的详细用法和例子。. 首先，be known to do通常用来描述某人的性格或行为习惯。. 例如，我们可以说：“ …
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