no doubt

基本解释

And there must be no doubt: As America’s first Pacific President, I promise you that this Pacific nation will strengthen and sustain our leadership in this vitally important part of the world.
毫無疑問，作爲美國的首位心系太平洋的縂統，我曏你們承諾，這個太平洋國家將增強竝持續保持我們在世界這一極其重要地區的主導地位。
Of this I have no doubt before meeting him.
在見到他之前我就對此毫不懷疑。
No doubt about that.
那是毫無疑問的。

"And as Iran's leaders continue to ignore their obligations, there should be no doubt: they,too, will face growing consequences.
Now,that thing that wakes up after this complete irreversible amnesia will no doubt eventually develop a personality,a set of beliefs,memories.
這人在經歷了完全不可逆的失憶後醒來,最終發展出了自己的人格，信唸和記憶。
耶魯公開課 - 死亡課程節選
And after the usual amount of scholarly debate, there seems to be no doubt that it was the City of Troy.
經過一番學術討論之後,這裡被確定爲特洛伊城
耶魯公開課 - 古希臘歷史簡介課程節選

And he said there's no doubt for him the Clinton campaign was throwing the race card.
NPR: Injecting Race into Politics