1.a time of ...时期

例句：It was a time of agitation and revolt.
这是一个动荡不安，反抗四起的时期。

2.a combination of ...的结合；二者合一

例句：The family's reaction was always a combination of shock and joy.
那全家人的反应总是惊喜交集。
3.have nothing to do with 与...无关

例句：You had better have nothing to do with him.
你最好不要跟他交往。

4.associated with 与...有关；与...有联系

例句：He is associated with his sons in business.
他和他的儿子们合伙做生意。