polishsthup
—phrasal verbwithpolishverb[T]uk/ˈpɒl.ɪʃ/us/ˈpɑː.lɪʃ/
(OBJECT)
toruborbrushanobjectto make itshine,especiallyametalorwoodenobject
擦亮，磨光（尤指金属或木制品）
Robert waspolishingup someoldsilvercandlesticks.罗伯特在擦拭一些旧的银质烛台。
(SKILL)
toimproveaskill,especiallywhen you haveallowedit tobecomeless good over aperiodoftime
改进，提高（尤指长期荒废的技能）
I really mustpolishup myJapanesebefore wevisitJapan nextyear.明年我们去日本前，我真得恶补一下我的日语。