4 月 21 日是自与哈马斯冲突开始以来以色列士兵伤亡最惨重的一天，当时加沙的拆除行动中发生了爆炸。 The deadliest day for Israeli soldiers since the start of the conflict with Hamas was 21 April, when an explosion occurred during demolition operations in Gaza.

据以色列军方称，周一加沙中部发生的袭击造成 21 名以色列士兵死亡。 An attack in central Gaza on Monday left 21 Israeli soldiers dead, according to the Israeli military. 这些士兵所在的两座建筑物因以色列军方为拆除建筑物而放置的爆炸物发生爆炸而倒塌。 The soldiers were inside two buildings that collapsed due to a blast that involved explosives placed by the Israeli military to demolish the buildings. 这起事件标志着以色列军队自与哈马斯冲突开始以来伤亡最惨重的一天。 The incident marks the deadliest day for Israeli troops since the conflict with Hamas began.