Translation

交互に / かわるがわる / 順番に

Meaning

Alternately means in turns: A, then B, then A, then B. It is useful for procedures, patterns, movements, and schedules. The learner trap is using alternatively, which means as another option.

Examples

• 赤と青のライトが交互に点滅しました。
  The red and blue lights flashed alternately.
• 粉と牛乳を交互に加えてください。
  Add the flour and milk alternately.