vt.

1. 分开，拆卸；使分离[（+from）]
   The coupon is not valid if detached.

   折价券撕下无效。

2. 派遣，分遣
   The officer detached thirty men to guard the railroad station.

   那位军官派了三十名士兵去守火车站。

v.

1. disengage (something) and remove it.
2. (detach oneself from) leave or separate oneself from (a group or place).
   ▸ (be detached) Military  be sent on a separate mission.