Ddf
[计] 数据库描述文件, 开发论证设施
🗣️ 情景例句
The rich few nations of this world take up the vast majority of the wealth and resources.
少数几个富裕的国家占有了大多数的财富和资源。
It seems he's handsome.
看起来他好像很英俊。
Wake me up at five thirty.
请在五点半叫醒我。