 |
| |||
| hierarchische Datenbank | |||
| hierarchische Datenbasis | |||
| 英语 词库 | |||
| |||
| A database structured in a tree/root or parent/child relationship (Each parent can have many children, but each child may have only one parent) | |||
|
Hierarchical DataBase : 3 短语, 2 学科 |
| 商业活动 | 2 |
| 计算 | 1 |