解释下列词语。
1.派遣:_________________________________
2.不远万里:_____________________________
3.以身殉职:_____________________________
4.狭隘:_________________________________
5.热忱:_________________________________
6.拈轻怕重:_____________________________
7.漠不关心:_____________________________
8.麻木不仁:_____________________________
9.精益求精:_____________________________
10.见异思迁:____________________________
11.鄙薄:________________________________
12.不足道:______________________________
13.纯粹:_________________________________