with stony patience
不屈の忍耐心で
with surgical precision
きわめて慎重で正確に
with surprising speed
驚異的な速さで
with swimming eyes
目に涙を浮かべながら
with tears in one's eyes
目に涙を浮かべて
with the advance of night
夜がふけるにつれて
with the aid of a computer
コンピュータの助けをかりて
with the aim of keeping peace
平和維持の目的で
with the assistance of ...
…の助けを借りて
with the benefit [the wisdom] of hindsight
あと知恵で,あとから振り返って見ると