apropos/ˌæp.rəˈpoʊ/形容词适时的;恰当的clothes that are apropos to the occasion适合那个场合穿的衣服/ˌæp.rəˈpoʊ/副词、介词说到…;关于…;就…而言Apropos what you said yesterday, I think you made the right decision.至于你昨天说的话,我觉得你作的决定是对的。想跟读,去练习