it is always a pleasure serving you at XXX bank. 這句是letter中抄出來的
it is always a pleasure serving to/for you at XXX bank.
為什麼沒有 to/for
從文法上看
it (Noun) is (verb) always (adverb) a pleasure serving (noun) you (noun) at XXX bank.
Noun Verb adverb noun noun
可以這樣的嗎?? 為什麼??