他在搏斗中用刀刺伤了对方。

He ___knifed his opponent during the fight.

滑冰选手以惊人的速度滑过冰面。

The skater ___knifed across the ice with incredible speed.

当队友在关键时刻把计划泄露给对手时，他感到心如刀割。

He felt ___knifed when his teammate leaked the plan to the opponents at the critical moment.