她说，他们不使用标准的白色床单，因为他们想给客人一个家的感觉。
She says they don't use standard white bed sheets because they want to give the guests a homey feeling.
画面显示幸存者在被水围困的家中，在居民楼的上层楼面，挥舞着白色床单。
The images showed survivors in a home surrounded by water, waving white sheets from the upper floors of buildings.
带上足够喝的水、防晒用品、手电、救命药、白色床单或者颜色鲜艳的毛巾作为求救信号。
Ana Wisneski of the U.S. Coast Guard. Bring plenty of water to drink, sun protection, a flashlight, vital medications, and white sheets or colorful towels to signal rescuers.
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