妹妹今年6岁，两年后，妹妹比姐姐小3岁。请问姐姐今年多大了？8h8x6P'D9R3o+?)C'j+i0p)M/j0R;]
算式：提示*Q8V;q(R5p-f([8h8x6P'D9R3o+?)C'j+i0p)M/j0R;]
口答：姐姐今年0f(`/[+Q,E+R5m岁了。8h8x6P'D9R3o+?)C'j+i0p)M/j0R;]