プログレッシブ和英中辞典(第4版)の解説
かつ【且つ】
〔その上〕besides, moreover, furthermore;〔同時に〕at the same time
時間が遅いし,かつまた外はとても寒い
It's late, and besides [moreover] it's very cold outside.
彼の演説は面白くかつ刺激的だった
His speech was at once interesting and stimulating.
かつ歌い,かつ踊った
We sang and danced at the same time.