天气太冷，她把外套的兜帽拉上来保暖。

It was so cold that she pulled up the ___hoods of her jacket for warmth.

这些年轻人来自城市最危险的街区。

These young guys come from the most dangerous ___hoods in the city.

请确保在操作机器前关闭机盖。

Make sure to close the ___hoods before operating the machine.