If we then take the detectors away we are still firing individual photons one at a time but we no longer know which slit they are going through.

如果在探测器被拿走的情况下，我们还是一颗颗地放射单光子，可是却看不出它们是从哪条缝穿过去的。

youdao

They are going about their business in a systematic way. They realise the situation in the US and Europe is going to take time to sort out.

它们已经在非常系统的运营，它们认识到欧洲和美国的现状需要一段时间才能理清。

youdao

On the other hand, maybe they didn't even take time off, didn't have vacation days saved up, or didn't have the money or interest in going away.

另一方面，或许他们根本就没抽出空来，没有时间去度假，或者没钱度假，对度假不感兴趣。

youdao

"I think it will take some time for engineers to assess the state of risk, how they are going to remove that risk and all of that will take a period of time, " he added.

BBC: Work is underway

And what that means is that, for the less experienced ensembles, they're simply going to have to take more time to prepare the work.

NPR: 'Chasing Light': Music Made For 50 States

Back in December, it was apparent they were going to take the high road and spend their time focused on the thousands of success stories from within their organization.

FORBES: Livestrong's Challenges As A Consequence Of Lance Armstrong's Confession