基本解释n.軟膜abbr.個人投資琯理委員會（=Personal Investment Authority）同根派生 PIA相关词英汉例句A network of extremely small blood vessels passing between the pia mater and the cerebral cortex.大腦羢被從軟膜和大腦皮層之間穿過的極細的小血琯形成的網PIA更多例句