Ddf
[计] 数据库描述文件, 开发论证设施
🗣️ 情景例句
And a living room with a twelve-foot ceiling.
有一间十二米高的客厅。
Marriage is a lottery.
婚姻是一件难于预料的事。
But we do not need to send men down to get the oil out, as we must with other mineral deposits.
但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。