On Halloween, children would knock on their neighbours' doors and threaten them with "trick or treat".

万圣节的时候 孩子们会穿去敲邻居的门 威胁他们说 不请吃就捣蛋

They get dressed up like monsters, have parties and play trick or treat.

他们穿成鬼怪的样子、开晚会、玩不招待就使坏游戏。

Trick or treat! I'm a ghost.

不给糖果就捣乱。我是一个幽灵。

Trick or treat! Could you give me toast?

不给糖果就捣乱。可以给我面包片吗？

Every time they come to a new house, they say, "Trick or treat!"

每来到一个新房子他们就说：“不给糖就捣乱！”

They knock on their neighbours' doors and shout "trick or treat".

他们敲了他们邻居家的门，然后喊着“不给糖就使坏”。