这是第二种海市蜃楼，发生在地面比空气冷的时候。
This second kind of mirage happens when the ground is colder than the air.
虽然天气冷的手指发麻，她们已经可以生产她们的第一批围巾了。
Despite finger-numbing cold, they havejust produced their first batch of scarves.
虽然天气冷的手指发麻，她们已经可以生产她们的第一批围巾了。
Despite finger-numbing cold, they have just produced their first batch of scarves.
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