Ddss
分布式决策支持系统
🗣️ 情景例句
one of the best tennis players on the Michigan team--
当年Michigan球队最好的网球选手--
Work has a bitter root but sweet fruit.
劳动根虽苦，然而果实甜。
but the paper was wrapped round a drum which rotated slowly.
根但是纸是卷在慢慢旋转的圆筒上的。