1. I
  1. 1〔深く切る〕cut deep ((into))
  1. 2〔敵の中に切り入る〕cut one's way ((into the enemy's position))
  1. II〔問い詰める〕
    • あの検事に切り込まれたらごまかしきれない
    • I cannot evade [sidestep] that prosecutor's penetrating questions.
    • 彼は私の急所に切り込んできた
    • His questions put me on the spot.