To find the roots of Equation,we first get rid of the quadra
2个回答
要找到这个等式的根,我们通过换元来避开二次项.
这句话中 "get rid of" 是一个固定短语,表示“摆脱、避开、远离”的意思,“rid”不能单独拿出来看它的意思.
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