小红家的时钟敲2下要2秒．敲8下要几秒？5T6B-t.s+K(P-@/l'F2J*y
算式：提示5s2W9y4O8|/X7N/E1A5T6B-t.s+K(P-@/l'F2J*y
答：敲8下要;F;w(@)I1N/T1s8_秒。5T6B-t.s+K(P-@/l'F2J*y