alternately

This movie is by turn (= alternately) terrifying and very funny.

The dancers alternately arched and hunched their backs.

The tempestite and non-tempestite occur alternately in vertical section.The development of tempestite is related to stratum, ancient landfom and water depth, tectonic location and clast supply.

The team members alternately presented their ideas during the meeting.

She alternately laughed and cried while watching the movie.

The students alternately worked in pairs and individually on the project.

The chef alternately added salt and pepper to the dish.

The siblings alternately took turns playing with the new toy.

The actors alternately delivered their lines on stage.

They alternately switched between different modes of transportation during their trip.

The singer alternately sang soft and powerful notes in the song.

The children alternately played tag and hide-and-seek in the park.

The professor alternately lectured and led discussions in the class.