distribution
/ˌdɪstrɪˈbju:ʃn; ˌdɪstrə`bjuʃən/ n[C, U]
1 (instance of) giving or being given to each of several people, etc 分发; 分配; 分送
the distribution of catalogues, forms, prizes, etc 目录、 表格、 奖品等的分发.
2 (instance of the) positioning or allocation of items, features, etc within an area 分布
the distribution of schools in this district 这个区里的学校分布情况
Pines have a very wide distribution. 松树的分布很广.