1.On Friday, a terrorist gunned down and killed 50 worshippers who were praying at two mosques.
terrorist 恐怖分子
One American was killed and three were wounded in terrorist attacks.
在几起恐怖袭击中,1名美国人被杀且有3人受伤。
2.New Zealand Police alerted us to a video on Facebook shortly after the live-stream commenced.
alert 警告;警觉
He wanted to alert people to the activities of the group.
他想警告人们注意这个组织的行动。











