用 every other 即可。
每隔壹個關壹盞燈
turn off every other light
另舉例句：
約翰每隔壹個星期就復習壹遍功課。
John brushes his lessons up once every other week.
每隔壹個星期我們都到公園溜壹趟。
We enjoy staying in the park every other Sunday.
用 every other 即可。
每隔壹個關壹盞燈
turn off every other light
另舉例句：
約翰每隔壹個星期就復習壹遍功課。
John brushes his lessons up once every other week.
每隔壹個星期我們都到公園溜壹趟。
We enjoy staying in the park every other Sunday.