n.<军>手榴弹,催泪弹,灭火弹
He killed two policemen with a grenade.
他用一枚手榴弹炸死了两名警察.
He was hit by shrapnel from a grenade.
他被手榴弹的弹片击中了。
Simon caught the grenade and hurled it back.
西蒙接住手榴弹,又把它大力掷了回去。