了如指掌、见多识广

了如指掌	了如指掌 liǎorúzhǐzhǎng [have sth.at one’s fingertips; know as one know his ten fingers; know like a book; know as well as a beggar knows his bag] 形容对情况极为清楚 对他们的活动,他完全了如指掌
见多识广	见多识广 jiànduō-shíguǎng [experienced and knowledgeable;have experience and extensive knowledge] 指见闻较多,经验学识丰富广泛

一窍不通、全无所闻

一窍不通
全无所闻

词语拼音：yī wú suǒ zhī

词语解释：暂无