groupware组件groupn.群；组；团体；集团v.聚合；成群、组；把 ... 聚集；把 ... 分类group-two facsimile apparatus传真二类机group travel accident insurance团体旅行事故保险group additive utility function群可加效用函数group negotiation voting system集团协商表决制group of linear transformations线性变换群group-transfer polymerization基团转移聚合grouping of soil organic matter有机质分组group velocity dispersive media群速度色散体介质group codes of graphic entities实体数据表group discussion on chosen topic选题小组讨论

1. He took out a fire insurance policy for his house.
   他为自己的房子办理了一份火险保险单。
2. The annual premium on my policy is 3000 yuan.
   我的保险单每年的保险费是三千元。