Tdss
传统的决策支持系统
🗣️ 情景例句
And remember,
记住，
Fall sick and you will see who is your friend and who is not.
困难见友情。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，