— What can she do?
— She can dance.
The upset mother thought to herself, “If only I ______ what's going on in my little boy's head right now.”
造句。
虽然……但是……
如图,网格纸上小正方形的边长为1,粗实线画出的是某三棱锥的三视图,则该三棱锥的体积为( )