青少年爬上几十层楼梯，给困在高层建筑中无助的老年人送水和食物。
Teenagers climbed dozens of flights of stairs to deliver water and food to elderly people trapped in powerless high-rise buildings.
于是他们买了一些便宜的袜子，并在广告中说只要买一碗汤就送一双袜子。
So they got some cheap socks, and they advertised to give a pair away with each bowl of soup.
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