and如果用在这种并列的状语（从句）否定句中时,要求这两个条件需要同时发生.
如果是or的话,则只需其一发生即可.
再如：We can't live without air and water.没有水和空气,我们无法生存.
We can't live without air or water.没有水或空气,我们无法生存.
求教一句话this won't happen unless they are insolvent and we lose
3个回答
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