Usage patterns
順々に〈動詞〉to do something one by one, in turn
The students gave their presentations one after another, in turn.
〈人〉を順々に呼ぶto call people in turn, one by one
The receptionist called out the names one by one, in order.
順々に並ぶto line up in order
The children lined up in order, one after another, by height.