well-informed

adj. 消息灵通的, 熟悉的, 博识的, 见闻广博的

详细释义：

a.

见多识广的; 消息灵通的

He is very well-informed; that's why he won the general knowledge competition.

他见识非常广博, 所以他在常识竞赛中获胜。