Definition
to fire at and typically kill a person, without showing any compassion
毫無憐憫地射擊某人，通常致命
He shot down the innocent passerby in the street without showing any compassion.
他毫無憐憫地射殺了街上的無辜路人。
The robbers opened fire as soon as they entered the bank, shooting the guard down mercilessly.
劫匪一進入銀行就開火，毫不留情地射殺了警衛。
In the skirmish, the enemy shot down several soldiers without any hesitation or sympathy.
在衝突中，敵人毫不猶豫或同情地射殺了幾名士兵。