过去发生过 once
谈论过去发生的事 Talk about past events
发生在去年 Last year ; occurred within the past year
谈论过去可能发生的事 talking about past possibilities
这件事发生在我阿姨身上,当时她想辞掉工作,去当一名女警察。
This happened to my aunt when she wanted to quit her job and become a policewoman.
即使你只是去另一个国家旅行一天,意外也会发生。
Even if you are only going on a day trip to another country, accidents can happen.
And, so the experiment was to bombard the foil with these alpha particles, and that measure what happens to them.
因此用这些阿尔法粒子,去轰击金箔,将会发生什么事情呢。
Just as you are making decisions about your life, where you need to go and what needs to happen next.
当你正在为自己的人生做决定的时候——你要去哪儿?接下来又会发生什么?
He's happy that the final separation will take place and he'll be able to go to heaven.
他很高兴这最后的分离终于要发生了,这样他就可以去天堂了
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