conversant

形容词 conversant:

1. (usually followed by `with') well informed about or knowing thoroughly
   同义词：familiar

1. The state of being conversant; familiarity.
   熟悉熟悉、精通的状态; 熟识
2. Our manager is conversant with account system.
   我们的经理精通会计制度。
3. I am thoroughly conversant with all the rules.
   我对所有的规则了如指掌。
4. She is conversant with English.
   她精通英语。

con.ver.sant

adj.（形容词）
Familiar, as by study or experience:
精通的：（如通过学习或经历）熟悉的：
例句：
conversant with medieval history.
精通中世纪历史

来源：
Middle English conversaunt [associated with]
中古英语 conversaunt [与…有联系]
from Old French conversant [present participle of] converser [to associate with]
源自 古法语 conversant [] converser的现在分词 [与…交往]
from Latin convers3ro * see converse
源自 拉丁语 convers3ro *参见 converse

【引伸】
conver.santly
adv.（副词）