No doubt about it, you are right. Actually, we can tell them from their verbs, manage and administrate. Their verbs show the characters of their nouns.
store manager = 店長
assistant manager 是助理經理的意思~ 至於發音就是 "ah sis tant man nage ger" 或是 "阿 死一死 ㄊ阿ㄝㄊ ㄇㄝ 餒 居ㄦ"