聚精会神: to concentrate one's attention (idiom)...
等到: to wait until, by the time when (sth is ready etc)...
要素: essential factor, key constituent...
忠于: to be loyal to...
不客气: impolite, rude, blunt...
一言不发: to not say a word (idiom)...
沙龙: salon (loanword)...
展览: to put on display, to exhibit, exhibition, show...
烫: to scald, to burn (by scalding), to blanch (cooking), to heat (sth) up in hot water, to perm, to iron, scalding hot...
大包大揽: to take complete charge (idiom)...