つぎつぎ次々tsugitsugiつぎつぎ次次tsugitsugi
1.

Describes a situation where different things occur or appear continuously with little to no gap in between, often in a sequential manner.

2.

Refers to an ongoing series where events, actions, or items follow one after another in a rapid or orderly fashion.

3.

Illustrates the concept of multiple occurrences happening in a rapid succession, emphasizing a sense of flow or progression.

Example:

彼らは次々と出発した。

つぎつぎ次々tsugitsugini
1.

Referring to actions or events that occur in a sequential manner, where each occurs immediately after the previous one without interruption.

2.

Describing the process of things happening in a continuous flow, with each item or occurrence following the one before in a quick succession.

3.

Indicating a series of events or items that take place or appear in an orderly chain, often emphasizing the rhythm or pace of the sequence.

Example:

次々に立って出ていった。