相关词
保鲜bǎo xiānto keep fresh; to preserve freshness全新quán xīnall new; completely new创举chuàng jǔpioneering work前所未有qián suǒ wèi yǒu(idiom) unprecedented前所未见qián suǒ wèi jiànunprecedented前所未闻qián suǒ wèi wén(idiom) unheard-of; unprecedented前无古人qián wú gǔ rén(idiom) unprecedented史无前例shǐ wú qián lì(idiom) unprecedented in history