例句
In that region, Chile went from ninth to first, overall, as Chilean mobile web use increased by 3200% over the past year.
智利从这一地区的第九跃升到第一位，因为智利的移动网络用户在过去一年增长了 3200% 。
Then, in eighth or ninth grade, I studied astronomy, cosmology, and the origins of the universe.
后来，在八、九年级的时候，我在学习天文学，宇宙学和宇宙的起源。