注重关注点分离，即使两个关注点的初始大小差别很大。
Respecting separation of concerns, even if initial size of the two concerns is rather unequal.
古典音乐起源于欧洲。它的作曲非常正式，演奏家很少即席发挥。古典音乐乐队的大小差别很大，小至弦乐四重奏乐团，大到交响乐团不等。
Classical music originated in Europe. The compositions are formal and the musicians rarely improvise. Classical music groups vary in size from string quartets to symphony orchestras.
应用推荐