我们需要了解事情发生的确切时间。
现在，科学家们已经找到了这些记忆消失的确切时间。
Now scientists have found exactly when these memories disappeared.
这记录不知道确切时间的未来事件。
This records a future event where you do not know the actual time with certainty.
然而没有人知道进行真正选举的确切时间。
Nobody yet knows exactly when elections will actually take place.
你能告诉这会议的确切时间吗？
请告诉我们大火发生的确切时间。
我不知道他们回来的确切时间。
I don't know the exact time when (at which) they will be back.
你最好弄清楚火车到达的确切时间。
You'd better make sure of the exact time of the arriving train.
你知道会议开始的确切时间吗？
请告诉我们大火发生的确切时间。
The exact time? Let me think. You know, it happened at night.
我想要知道交货的确切时间。
我不知道田径运动会举行的确切时间。
I don't know the exact time when (or that) the track and field meet will take place.
“我们甚至不知道事故发生的确切时间”，他说道。
"We don't even know the exact time of the accident," he said.
史蒂文：是的，但是我不知道确切时间。
你知道开会的确切时间吗？
谢谢。哦，你知道它到达的确切时间吗？
确切时间是什么时候？
保罗曾在那里，我们不知确切时间，他在那里建立教会。
Paul was there at some point, we don't know exactly when, he founded some churches there.
人们并不知道美国开始使用塑料管的确切时间。
The exact inception of the use of poly tubes in the United States is unknown.
如果回头看，我们却不知道事情开始出错的确切时间和地点。
And looking back, we cannot know the precise time and place that it all went wrong.
这台望远镜可用来探测星星越过子午线的确切时间。
The meridian circle telescope is used to determine The Times at which stars cross the the meridian.
确切时间？让我想一想。你知道，火灾是晚上发生的。
我不太记得有关尸体的确切时间限制了，但是挺长的。
I can't remember the actual timer on corpses, but it is pretty long.
可能还有一些规则指定完成某个活动的确切时间或发生错误时如何处理。
There may also be rules that specify exactly when a particular activity has been completed or what to do when an error has occurred.
黑落德王秘密地召见那几位贤士，询问了星星出现的确切时间。
Then Herod secretly called the wise men and asked them the precise time the star appeared.
在古人类学家中人类具有艺术审美观的确切时间存在很大的争论。
EXACTLY when humanity became artistic is much debated by palaeo-anthropologists.
在古人类学家中人类具有艺术审美观的确切时间存在很大的争论。
EXACTLY when humanity became artistic is much debated by palaeo-anthropologists.
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