has been at
英
美
- at prep.在;向，朝;处于…状态;在…远;（用于速度、比率等）以，达
- been be的过去分词，有；在；是；到达；拜访
- has v.有，吃，得到，从事，允许，雇用，享有（have的第三人称单数）
- My father has been at rest since I was a girl.
在我还是小女孩时，我父亲就已去世了。
- The country has been at war with its neighbour for two years.
这个国家与邻国已打了两年仗了。
