three rowadj.三行的threenum.三n.三；三个adj.三个的three phases of soil土壤三相three-sensor array三元阵three-line-array三线阵three-cube network三立方体网络three way dump truck三向倾卸货车three cycle spectrum三循环谱three axis turntable三轴转台three cornered trade三角贸易three-year absence离开三年three-ship element三机小队

1. But the three zones mingle and amalgamate along the edges, like the colors in the solar spectrum.
   然而，这三带的各自边缘又相互混合，相互渗透，就像太阳光谱的各种颜色那样。
2. The edifices which belong exclusively to any one of these three layers are perfectly distinct, uniform, and complete.
   分别各属于这三带之任何一带的建筑物，都各自是界限清楚的，统一的，完整的。