Rdbms
关系数据库管理系统
🗣️ 情景例句
I researched it for over a year.
我研究了一年多。
Sometimes the snow was so deep we could tunnel through it.
偶尔雪会积到可以造隧道那般的深度。
I like light green, but Lily prefers dark blue.
我喜欢淡绿色，而莉莉却更爱深蓝色。