为什么没人说话？为什么没人回答？这对我来说很难。
Why nobody spoke here? Why nobody answered it? This is difficult for me.
youdao
没人知道为什么鹦鹉能做到这一点，或它们究竟怎样学会说话的。
Nobody knows why parrots can do this, or exactly how they do it.
为什么没人在这说话呢?很安静。
Why nobody talked here?It is very quiet.
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