dispensable

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dispensable
both teachers and students are an dispensable part

首先不能用an打错了是吧?其次疑点在与前面的are与后面的a在这个句子中,teachers和students是作为一类事物而言可以用theteacher和thestudent代替both后面单数复数都

I am your dispensable your are my essential

我对于你可有可无,你对于我却至关重要.

I am your dispensable ,you are my essential.怎么读

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