1.Peacekeepers stepped up their patrols after they failed to prevent the gang-rapes of hundreds of women by the rebels.
维和人员在没能防止叛军对成百上千的妇女进行强奸后，加强了巡逻。
2.They carried out grisly gang rapes and murders of women in full sight of the commanders.
他们在指挥官面前，恐怖地轮奸和谋杀妇女。