柯林斯詞典read up on (reading,reads) 1. PHRASAL VERB If you read up on a subject, you read a lot about it so that you become informed about it. 鑽研; 熟讀 I've read up on the dangers of all these drugs. 我已熟知所有這些葯物的危險(xiǎn)之処。 返回 read up on