ef・f・cient・ly *fntli, f-【副】能率的に, 効果的に‖A variety of drills were carried out to act quickly and 〜 in times of emergency. 非常🔗⭐🔉

ef・f・cient・ly *fntli, f-

ジーニアス英和大辞典 ページ 36539 での【副】単語。