1.it's no doubt：doubt的基本意思是对事〔物〕的真实性等表示“怀疑”或“不信任”，有时甚至在调查研究之后仍“难以确定”。 也常用来表示对宗教信条等持有疑虑。
We can use there is no doubt that … when we are very certain about our opinion. We use it in formal situations: He’s never won Wimbledon, but there’s no doubt that he is a great tennis …
no doubt 的用法无疑，no doubt是一个具有多重用法的词组。首先，它作为一种名词词组，可以作状语修饰系动词，表达“无疑地”或“毫无疑问”的意思。其来源的副词形式“no doubt”则传达出“确实”和“必
A: No doubt you’ll want breakfast before you leave tomorrow. B: Yes, if that’s okay. A: No problem. We can use there is no doubt that … when we are very certain about our opinion. …
no doubt. phrase. Add to word list. C1. used to emphasize that what you are saying is true or likely to happen. 毫无疑问，毋庸置疑，肯定. We will, no doubt, discuss these issues again at …
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