Newtypes of ships were needed, new methods of finding one's way, new techniques for financing so vast a scheme.
新型船舶，新的寻路方法，以及为如此庞大的计划融资的新技术都是必要的。
2
The reason for this is easy to recognise: in nature, the existent organisms either adapt or are regularly replaced by newtypes.
原因很容易理解：在自然界中，现存的生物要么适应环境，要么被新物种取代。
3
They use newtypes of guns, and birds could easily be shot down in flight, and in such great numbers that commercial hunting of ducks and geese became an industry.