We seem to have a collection of these masks that habitually surface, intending to best serve our self-interest, based on the need of our immediate environment.
我们似乎收集了一些这样习惯性就在表面的面具，为了服务我们在即时环境下的利益。
2
But Mr Chhatre says he and his colleagues have increased the efficiency of water collection using a variety of surface coatings.
但Chhatre先生表示，他和同事利用不同的表面涂层，增加了集水的效率。
3
The code in Listing 6 only scratches the surface of Ruby's collection handling!