as ever和as usual的含义不同。

as ever的意思是一如既往，例句:He was as ever assiduous and gallant, and called her every day.

他一如既往地献殷勤，每天都给她打电话

as usual 的意思是照常，例句:Despite the threat of war, people went about their business as usual.

虽然战争在即，人们照常忙着自己的事。