It was not until 1974 that his ability to write gelled again.直到1974年，他的写作才华才又得以发挥。Not until last week was the project in full blast.工程直到上星期才全部开工.It was not until yesterday that I learned it.顶昨天我才听说这件事....
这个城市小型湖泊星罗棋布，有天然的也有人工的。The city is dotted with small lakes, natural and artificial.现在有很多算法来生成人工的地形.There are also lots of algorithms to create artificial terrains.在英文中Artificial这个词有两个含义,一是人工的,二是假的.There are two meanings ...