he feels lonely,he doesn't know who __ it.答案为：to talk to about 不太明白这里的about是怎么个用法
问题描述：
he feels lonely,he doesn't know who __ it.答案为：to talk to about 不太明白这里的about是怎么个用法
若果光说he doesn't know who to talk to这个好理解,再加上个about的话从语法上来解释怎么样才讲的通呢?
答
后面有个it啊.talk about是固定搭配