No one knows what she might be doing now, but not washing up, that's for sure.
没人知道她现在在干什么，但肯定不是在洗餐具。
When they get to know me and to trust me, knowing for sure I'm not selling them something—there'll be more honest feedback from them.
当他们开始了解我、信任我，并确信我不是在卖什么东西给他们时，他们会给出更诚实的反馈。
No one knows for sure what happened.
谁也不知道究竟发生了什么事。
No one knows for sure why adolescence is unique to humans.
没人确切知道为什么青春期是人类独有的。
One thing's for sure, Manilow's vocal style hasn't changed much over the years.
有一点是千真万确的，马尼洛的演唱风格这些年来没有太大的变化。
I am completely wrong for sure.
我肯定彻底错了。
Will he surprise us again? That's for sure.
他会再次给我们惊喜吗？那是肯定的。
For sure, anyone can create a blog (博客) about traveling.
可以肯定的是，任何人都可以创建旅行博客。
Mrs. Tara thought for sure that she knew who Peyton would pick.
塔拉太太以为她肯定知道佩顿会选谁。
A robot show will be held in July, but nobody knows the date for sure.
机器人展将在7月举行，但没人知道确切的日期。
Nobody knows for sure whether the theory is true or not, but it's a fact that bees are disappearing in very large numbers.
没有人确切地知道这个理论是否正确，但事实是蜜蜂正在大量消失。
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。
No one knows if Spot will stay after the pandemic is gone, but one thing is for sure: the robot is the hardest working dog in the world.
没人知道疫情结束后斯伯特会不会留下，但有一件事是肯定的：这个机器人是世界上最勤奋的工作者。
Some uses of color in nature remain unknown, but one thing is for sure, color not only makes our planet beautiful but it is also necessary for our planet to live on.
颜色在自然界的一些用途仍然未知，但有一件事是肯定的，颜色不仅使我们的星球变得美丽，也是我们的星球得以生存的必要条件。
Tha'rt a Yorkshire lad for sure.
你绝对是个约克郡男孩。
你不能肯定。
Her grades on the coming exams will fall for sure.
在即将到来的考试里，她的成绩肯定会下降。
"Aye, for sure, dear lad," she answered and she gave his shoulder a soft quick pat.
“是啊，当然了，亲爱的孩子。”她回答说，然后轻轻拍了拍他的肩膀。
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。
"I can say for sure that no one else loves me more than you do in this world," stated Sophia tearfully.
“我可以肯定地说，在这个世界上，没有人比你更爱我了。”索菲娅含泪说道。
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。
Do you remember all years when scientists argued that smoking would kill us but the doubters insisted that we didn't know for sure?
还记得那些年吗？当初，科学家提出吸烟会导致死亡，而怀疑者们却坚持认为我们还不能确认这一点。
This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know they're afraid.
这种恐惧机制对所有动物的生存都至关重要，但没有人能肯定人类以外的动物是否知道自己在恐惧。
One thing is for sure, traveling will be much easier from now on, as I can leave whenever I want without having to juggle rent, the dog, and well stuff.
有一件事是肯定的，从现在开始旅行将变得容易得多，因为只要我想，我可以随时启程，而不必应付房租、狗狗和其他东西。
One thing is for sure, if or when the U.K. leaves the EU, it will erect new logistical and economic barriers, and no one knows how divisive they will be.
有一件事是肯定的，如果或当英国离开欧盟时，英国将会建立新的物流和经济障碍，没有人知道这些障碍会造成多大的分歧。
Just as on smoking, voices now come from many quarters insisting that the science about global warming is incomplete, that it's OK to keep pouring fumes into the air until we know for sure.
就像吸烟一样，现在来自许多方面的声音坚持认为，有关全球变暖的科学是不完整的，在我们确定之前，继续向空气中排放烟雾是可以的。
Love addict sounds nicer for sure.
当然，爱上瘾听上去更顺耳。
But only her hairdresser knows for sure.
可能只有她的发型师知道到底是怎么回事吧。
Nevertheless， doesn’t the unseen exist for sure?
然而，看不见的，是不是就等于不存在?
No one knows for sure why Mr. Gilson has lung cancer.
没有人确切地知道为什么吉尔松会得肺癌。
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