2) point after sb.
从背后指着…
3) She was mugged from behind.
她被从背后勒
4) back
[英][bæk] [美][bæk]
后背
1.
The supporting and back structures are important temporary structures in jacking construction of bridges and culverts, and are of great importance in ensuring smooth construction and guaranteeing the time limit for a project.
支护和后背是桥涵顶进施工中重要的临时结构,对施工顺利与否、保证工期起着关键的作用。
5) Back
[英][bæk] [美][bæk]
朝后;向后;背部;后9洞，"走后门"推杆(球从球洞后沿进洞)
6) slave-master-back to back switch
主从背对背开关
补充资料：主从
1.主人与仆从。 2.主要的和从属的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条