① 两者其实含义是有重叠的：
ever ＝ at all times,always；而always ＝ At all times; invariably:
② 仔细区分,侧重不同：从中文的解释里面可见端倪,ever曾经,always总是：
ever强调的是 At any time,或in any way, 即是某个点,或任何一个；而always则是continually; repeatedly,表示连续性.
③ 俚语里, always ＝ for ever, without end; 而ever可以组成for ever and a day,即是always,forever的意思.