every second
成語所屬單字second
every second — 慣用語
1. Occurring with one thing or person in between each instance: alternating.
1.慣用語
釋義
每隔一（天、週等）
Occurring with one thing or person in between each instance: alternating.
例句
The doctor asked Hari to take the medicine every second day, not daily.
The city bus stops at this street corner every second hour from morning until evening.