遵循惯例的英文

generallyspeakingAsusualPressconventionally这些短语都有“按照惯例”的意思.全句的翻译是:Generallyspeaking,ourvacationmaybefromMay1toMay7.

as usual

If referring to office unofficial practice, you could say 'norm';if you want to follow the office's rules and regulation, you could use 'according to the rule of regulation';more seriously, if you want to follow the law of a country, you could say ' complying to the law'

In accordance with established practice

accordingtothepractice;accordingtothecustom;inthecustomarymanner;byconvention根据惯例—比较地道的说法：AccoundingtoNormalPracticegenerallyspeakingAsusualPressconventionally这些短语都有“按照惯例”的意思

normallyon principleas usual

according to practice before