with [in] a scornful tone
ばかにした口調で
with a show of indifference
無関心を装って
with a shrug (of the shoulders)
肩をすくめて
with a slam
バタンと
with a small hop
ひょいっと跳んで
with a snap
パチッ［ポキッ］と鳴って
With a spring he went across the stream.
彼はぴょんと小川を飛び越えた
with a springy step
さっそうと
with a stab to the heart
心臓を一刺しで
with a stretch
伸びをして
