-forgetoneself;becomedeliriouswithjoy;forgeteverythinginone'sjoy;getaswelledhead;(They)growsoswellheadedandconceitedthat(they)simplyforgetthemselves.;haveone'sheadintheclouds;loseallbearingsinmomentofprideandsatisfaction;makesb.swellheaded;one'sheadhasbeenturned(by...);turnone'shead:
becarriedawaybyasuddenimpulse;loseone'sheadinamomentofexcitement;心血来潮，忘乎所以
Onemustn'tbecarriedawaybyone'ssuccesses.在胜利面前不要忘乎所以。