您要查找的是不是：
- 分为三类to be divided three classes
- 三年three years
- 三角(n) a triangle
- 三类过失The third class of fault
- 三类法method of three categories
- 三类案件Three Kinds of Crimes
- 三类人群Three categories of people
- 三类建筑third-class structure
- 三类目标tertiary target
- 三类判断three categories of judgment
- 三类容器third category vessel
- 三类物资three categories of supplies; means of production in Category
- 三类油层Class Ⅲ reservoir
- 三类审核the third type checks
- 三类优化the third-order optimaed design
- 三类窝洞Class 3 cavity
- 三类课程three kinds of courses
- 三类自生数群Three Groups Of Automorphic Numbers
- 三类有机体three groups of organisms
- 三类金矿床3 Types of Au Deposit
