已知向量组
$A : \alpha _1=\left(\begin{array}{l}0 \\ 1 \\ 1\end{array}\right), \alpha _2=\left(\begin{array}{l}1 \\ 1 \\ 0\end{array}\right), B : \beta _1=\left(\begin{array}{c}-1 \\ 0 \\ 1\end{array}\right), \beta _2=\left(\begin{array}{l}1 \\ 2 \\ 1\end{array}\right), \beta _3=\left(\begin{array}{l}3 \\ 2 \\ t\end{array}\right)$ ，且向量组 $A$ 与向量组 $B$ 等价，则 $t=$