There was once a time when I had no fear.
我曾有过不知害怕的时光。
I remember once a time, my friend asked me to go to see the movie with her, I said yes without hesitation.
我记得有一次，我的朋友叫我去和她一起看电影，我毫不犹豫就答应了。
There was once a time when women had no right to vote.
曾经有一段时间妇女没有选举权。
There was once a time, and not so long ago ~.
有一次，而且还是不久以前…
I remember once a time, my friend taught me to play guitar, but I felt bored and gave up soon.
我记得有一次，我的朋友教我弹吉他，但是我觉得无聊，很快就放弃了。
In the paper, moulds of semi-solid forging standard tensile samples of aluminum alloys are designed, and one set of mould can produce five samples once a time.
设计了铝合金半固态模锻标准拉伸试样模具，采用一模五件。
Once a time, Andersen went home with Sara. He asked her, "What are you going to be when growing up?"
有一次，安徒生和萨拉一起回家，安徒生问萨拉：“长大之后，你想成为什么样的人呢？”
Once a time, Andersen went home with Sara. He asked her, "What are you going to be when growing up?"
有一次，安徒生和萨拉一起回家，安徒生问萨拉：“长大之后，你想成为什么样的人呢？”
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