Vocabulary consisting only from characters you are able to read
急に
きゅうに
(1)swiftly, rapidly, (2)suddenly, abruptly, immediately jlpt3, mix
一緒
いっしょ
together, meeting, companyjlpt5
降下
こうか
fall, descent, (plane) landing, (atmos.) depressionsuru
次々に
つぎつぎに
one by one, one after another, successivelyjlpt3