Rdbms
关系数据库管理系统
🗣️ 情景例句
I type about 40 words per minute.
一分钟我能打40个字。
After a successful career in business,he was appointed ambassador.
在生意的成功以后，他被指定为大使。
'Good heavens!' exclaimed his wife.
“天啊！”他的夫人惊叫，