... alternate days隔日 on alternate days隔日地 alternate stress交变应力；反复应力 ...
2
?每隔一天
...-在上月初(月中、月底) at the beginning (middle, end) of last month -每隔一天 every other day；on alternate days；every two days -每隔二天 at intervals of 2 days；every 3rd day ..
3
?隔天
... replace Awith B用B替换A as usual如常 on alternate days隔天 in the end最终 ...