n.相识的人,熟人;相识;对…有了解;知识,心得;
例句:
He struck up an acquaintance with a girl on the train.
他在火车上结识了一位姑娘.
You made Lady Cho's acquaintance as a child?
你还是个孩子的时候就认识赵夫人了 吧 ?
I struck up an acquaintance with him while on my trip to Sichuan.
我是在去四川的路上和他认识的.