during which time

during which time の類語

when, as long as, while, whereas, at the same time

during which time の言い換えを探すには

during which time（）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。