1·We don't know what happened. They were killing people, necklacing them and burning homes.
我们不知道事情为什么会变成这样，人们互相残杀，并将轮胎挂在抓来的人的脖子上点燃，然后将其房屋烧毁。
2·Necklacing the island are numerous sandy beaches which offer ideal spots for sun-bathing and swimming.
岛屿四周海滨点缀着无数的沙滩，是理想的日光浴和游泳场所。
3·He was scared. They were putting tyres around their necks and burning them in the street [a practice called 'necklacing'].
他吓坏了，人们把轮胎挂到其他人的脖子上，然后当街点着轮胎。