myd1121
花朵
共回答了20个问题采纳率:95% 举报
as we know now.heavy objects and light objects fall at the same speed unless air holds them back.
就像我们现在知道的,重的物体和轻的物体以一样的速度落下,除非空气阻挡它们.
as we have seen.oceans cover more than 70 percent of the earth
就像我们已经知道的,海洋覆盖了超过百分之七十的地球面积.
啦啦啦~希望帮得到你.
1年前
追问
6