know for sure翻译

know for sure的基本解释

读音: 美: 英:

确切知道：对某事有确凿的了解或确定的知识。

例句

We don't know for sure how much mass our Sun's lost over the last four billion years.我们不知道我们的太阳在过去的40亿年里损失了多少质量。
Scientists are continually learning more about sleep, but one thing they know for sure is this—for humans, it is as important as food and water.科学家正在不断加深对睡眠的研究，他们对其中的一件事实确信无疑：对于人类来说，睡眠与食物和水一样重要。
We'd probably know for sure whether someone was shooting at the president from that famous grassy knoll.我们可能确定是否有人正在从那个著名的草地山丘草地上向总统射击。

短语

I know for sure 我心里明白 ; 我会思念你 ; 我知道 ; 我会怀念你
But I know for sure 但我确信 ; 信念永不敢忘 ; 但是我清楚地知道
I don't know for sure 我不确切知道 ; 我不能肯定 ; 我不克不及必定 ; 我不确切的知道
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